Healthy Communities: Germs, Clean Air and Water, and Health Helpers

You share desks, doors, and air with other people. Germs are tiny things that can make you sick. Bacteria and viruses are two kinds. You need a microscope to see them. Many other tiny living things are harmless, and some help us.

Four ways germs travel

Germs can ride in tiny drops when people breathe, talk, cough, or sneeze. They can pass by touch or on things people share. They can also travel in food and water.

A germ needs a way into your body. Your mouth, nose, eyes, and cuts can give it an opening. A germ on a pencil does not jump through your skin. Your hand might carry it from the pencil to your mouth.

A door handle can be part of the path

Sam sneezes into his hand, then opens a door. Ava touches that handle and rubs her eye. Follow the path: Sam's nose, his hand, the handle, Ava's hand, her eye. The handle was the thing between them. This is indirect spread.

A clean-looking hand or handle can still carry germs. You cannot tell by looking. People can also spread some germs before they feel sick. That is why everyday habits matter even when everyone looks well.

Small changes can slow a chain

Imagine one child passes a germ to two new children. Each of those passes it to two more. After three rounds, count the first child and each new group:

Now imagine each child passes it to only one new child. Three rounds give:

These are pretend chains showing how spread can grow. In a real group, some people might pass germs to nobody and others to several people.

Cold air itself does not give you a cold. A cold comes from a virus. People often spend more time close together indoors in winter. Asthma, allergies, and broken arms do not spread between people. Treat a sick classmate kindly; getting sick is nobody's fault.

Your hands touch many things each day. Washing them helps keep germs off the next thing you touch. Covering a cough keeps some germs out of shared air.

Give a cough somewhere to land

Cover your mouth and nose with a tissue. Put the used tissue in the trash, then wash your hands. No tissue? Cough or sneeze into your elbow or upper sleeve. Your bare hand touches far more things than your sleeve does.

A mask worn over the nose and mouth catches some tiny drops too. People may wear one when sick or near someone who could get very sick.

Wash at the times that matter

Wash before eating and after using the toilet. Wash after coughing, sneezing, blowing your nose, or touching animals or garbage. Wash before and after helping care for a sick person.

1. Wet your hands with clean, running water. Add soap.
2. Rub the fronts, backs, between fingers, and under nails.
3. Scrub for at least 20 seconds. Humming “Happy Birthday” twice takes about that long.
4. Rinse, then dry with a clean towel or air dryer.

Soap helps lift dirt and germs from your skin. Rinsing carries them away. A fast splash with water misses much of this work.

Lena scrubs five times during her school day. Count only the scrubbing time:

That is 100 seconds, or 1 minute and 40 seconds. Each wash can stop germs from reaching someone else.

When there is no sink nearby

Hand sanitizer can help if soap and water are unavailable. Choose one with at least 60% alcohol. Rub it over all parts of your hands until dry. Keep it away from your mouth and eyes; swallowing it is harmful.

Soap and water are the better choice when hands look dirty or feel greasy. They also work better against some stomach germs. Muddy hands after digging need a proper wash.

Keep your cup, bottle, fork, and lip balm for yourself. They touch your mouth. Offering a friend a clean spare cup is a kind way to share a drink without sharing your own cup.

If you feel sick, tell an adult how you feel. Staying home gives your body rest. It also keeps your germs away from classmates and teachers.

Tell someone what is happening

Mention a fever, throwing up, diarrhea, a bad cough, or a sore throat. Say if you feel too sick or tired for normal activities. A temperature of 100.4°F (38°C) or higher counts as a fever. Your family decides about staying home, using your school's rules.

If illness starts at school, tell your teacher. The school nurse or office can help and call your family. Trouble breathing needs an adult's help right away.

A slightly runny nose without fever may be a small cold or an allergy. It does not always mean staying home. Describe what you feel so an adult can help decide.

Check both parts of the return rule

A common rule for respiratory illnesses, such as colds and flu, has two parts. For at least 24 hours, your symptoms must be getting better overall. For at least 24 hours, you must also be fever-free without fever medicine. Your family follows any extra school rules.

Noah's fever ends at 6 p.m. Tuesday, without medicine. Count forward one whole day: 6 p.m. Wednesday. Wednesday school starts at 8 a.m. Only 14 hours have passed, so he stays home. Thursday at 8 a.m., 38 hours have passed. If he has also been feeling better for at least 24 hours and meets the school rules, he can return.

Fever medicine can lower a temperature for a while. A lower number caused by medicine does not start the fever-free waiting time. If fever returns or you feel worse, stay home again and tell an adult.

While you are getting better

Rest and drink plenty. Let a trusted adult give you medicine. Keep some space from babies and older relatives when you can. Some germs can make them especially sick.

After vomiting or diarrhea, many schools require a day or more without it. Your family checks the rule for your illness. Stay out of swimming pools while you have diarrhea.

Feeling better does not mean every germ is gone. For the next 5 days after returning, use extra care around others. Your family can help with cleaner air, good hygiene, a well-fitting mask, or more space from people at higher risk.

A vaccine helps your body learn to fight a certain germ. It gives your body's defenses a practice run before the real illness arrives. Most vaccines are shots; some are drops or nose sprays.

A practice run for your body

Some vaccines use a weakened or killed germ, or a small part of it. Others give instructions for making a harmless germ part. Your body learns to recognize what it needs to fight. A vaccine protects against particular diseases, so one vaccine cannot stop every illness.

Many vaccines also make you less likely to catch and pass on a germ. Measles vaccines help in this way. When many people are protected, a germ finds fewer people to move through. This shared protection is community immunity, also called herd immunity.

Imagine Emma sits with four friends while carrying a germ. If none is protected, all four could catch it and take it home. If all four are protected, spread past Emma becomes much less likely. A baby in one friend's home has less chance of meeting that germ too.

Some people need protection around them

Babies are too young for some vaccines. Certain illnesses or medicines can stop a vaccine from working well. Some people cannot have certain vaccines. Community immunity helps protect these people.

This works for diseases that spread between people. Tetanus comes from germs entering a wound. It does not spread between people, so a tetanus vaccine protects the person who receives it.

Measles spreads very easily. Up to 9 out of 10 nearby unprotected people can catch it. Its germs can stay in a room's air for up to 2 hours after a sick person leaves.

Vaccines have changed people's lives

Smallpox once made many people terribly sick. Health workers gave vaccines and searched for cases around the world. In 1980, the World Health Organization declared smallpox wiped out. It is the only human disease people have removed worldwide. Children no longer need routine smallpox vaccines.

Children, teenagers, and adults receive vaccines. Some need several doses or a later booster. Health helpers keep records and follow the vaccination plan where you live.

After a shot, you may have a sore arm or feel tired or hot for a day or two. Serious reactions are very rare. Vaccines are tested before use. If you feel nervous, look away, breathe slowly, or hold someone's hand. A vaccinated person can sometimes still catch that germ; vaccination often makes illness milder.

Clean drinking water is safe for drinking and cooking. It has no harmful germs or harmful amounts of chemicals. Long before it reaches your faucet, people work to make it safe.

Where water begins

Surface water lies in rivers, lakes, and reservoirs. A reservoir is a lake used to store water. Groundwater fills spaces in soil and rock underground. Wells bring it up. Rain and melting snow help refill both sources.

In many towns, pipes take source water to a drinking water treatment plant. Some countryside homes have their own wells instead. Those families arrange tests of their well water.

How a plant cleans river water

Water from a river can carry dirt and germs. A plant commonly cleans it in this order:

1. Added substances help tiny dirt pieces stick together in clumps.
2. The clumps sink to the bottom of a tank.
3. Filters catch more material. Sand, gravel, and charcoal can be parts of filters.
4. A disinfectant, such as chlorine, kills germs. Some plants use ultraviolet light too.

Water workers test the treated water to check its safety.

Plants choose steps that suit their source water. Groundwater has already moved through soil and rock, which filter it. It often needs fewer steps than river or lake water. That does not remove the need to test it.

The last part of the journey

Treated water goes into large tanks or water towers. Pumps and gravity move it through pipes below the streets. Smaller pipes bring it into homes and schools. These pipes are separate from pipes carrying dirty water away.

Picture one glassful. Rain reaches a river. The water enters a plant, where dirt clumps, settles, and is filtered out. Disinfection treats remaining germs. Workers test the water. It waits in a tower, moves down a street pipe, and reaches a kitchen faucet.

Water rules set limits for safety. If tests find a problem, workers act and warn people. Treated and tested public tap water is safe when it meets safety standards. Bottled water is not always safer.

A stream can sparkle and still carry germs. Many harmful chemicals have no color either. Looking, smelling, or tasting cannot tell you whether water is safe.

How harmful things get into water

Animal poop, sewage, trash, and chemicals can reach rivers or groundwater. Floods can wash germs into a supply. A broken pipe can let dirty water enter. Germs in drinking water can cause diarrhea, cholera, and typhoid.

Do not drink water from streams, ponds, or puddles. Try not to swallow swimming water. At a drinking fountain, keep your mouth off the spout. Wash your own water bottle often and keep it for yourself.

Understand a water notice

A boil water notice warns that drinking water may carry germs. An adult boils water, lets it cool, or uses bottled water. This safer water is for drinking, cooking, and brushing teeth until the notice ends.

Maya's family receives a notice after a storm. The tap water still looks clear. Maya asks for cooled boiled water or bottled water for a drink. At bedtime, she uses safe water to brush her teeth too.

Boiling kills germs. It does not remove lead or other harmful chemicals. A chemical warning may give different instructions. Your family follows the instructions on that notice.

Help protect the source

Paint, cleaning chemicals, and old medicines can pollute water. They should not go down drains or onto the ground. Adults can find the right place to take them.

Safe water also needs to be available when people need it. “Safely managed drinking water” means a safe supply at home that is available when needed. In 2024, about 2.1 billion people lacked this service: about one person in four worldwide.

To picture one in four, imagine 24 children in six groups of four. One child in each group would make six children:

Used water does not disappear when it goes down a drain. Water from toilets, sinks, showers, and washing machines is called wastewater. Sewage is another name for this dirty water.

Carrying waste away safely

Human poop carries germs. Toilets and sewers keep it away from hands, food, and drinking water. A sewer is a large pipe, usually below the street.

In a sewer system, a flush sends water down a drain pipe. It joins a sewer and travels to a wastewater treatment plant. There, workers clean the used water before it returns to nature.

• Screens catch big objects.
• Heavy dirt settles in tanks, while grease floats.
• Helpful bacteria break down much of the remaining waste.
• Many plants disinfect the water to kill germs before releasing it.

The cleaned water may go back to a river, lake, or sea. Wastewater treatment and drinking water treatment have different jobs.

Some homes use a septic tank instead of a sewer. Solids settle in this underground tank. Liquid travels out through pipes into nearby soil, which helps clean it. The tank and soil work together.

Help the pipes work

Only pee, poop, and toilet paper belong in a toilet. Toilet paper breaks apart in water. Wipes, paper towels, toys, and hair can block pipes. Even wipes called “flushable” can cause clogs.

Grease and cooking oil also cause trouble in drains. Grease can harden as it cools and stick inside pipes. Oil can stay liquid but build up with other waste. Blocked sewers can send dirty water back into streets or buildings.

Theo flushes a paper towel at school. The toilet clogs and spills onto the floor. He stays away from the water, tells an adult, and washes his hands. The custodian can close the area and clean it safely.

Rain has its own route

A storm drain takes rainwater from a street. In many towns, that water goes straight to rivers or lakes without treatment. Keep trash and poured liquids out of storm drains.

In 2024, about 3.4 billion people lacked safely managed sanitation: safe toilets and safe handling of waste. About 354 million practiced open defecation, meaning they relieved themselves outdoors instead of using a toilet. Safe sanitation helps stop waste germs from reaching people.

A pile of trash can be a health problem. Rotting food attracts flies, cockroaches, rats, and mice. These animals can carry germs. Sharp glass or metal can cut someone.

What happens when trash stays put

Water collects in old cans and tires. Mosquitoes can lay eggs in that still water. Food scraps left on the ground draw pests, even when the scraps are natural. A banana peel belongs in the proper bin.

Closed lids help keep pests away from food waste. Put trash inside the can, close the lid, and avoid overfilling it. A wrapper left beside a full can can still blow away or attract animals.

A community's collection plan

Families put garbage in bins. Trucks collect it on set days. Some goes to a landfill, where waste is placed in a managed site. Some goes to a plant that burns it. Materials for recycling go to be sorted.

Imagine 20 homes each fill three bags a week. First find the street's weekly total:

Without collection for four weeks, the street would have:

That is 240 bags. Regular pickup keeps the pile from growing week after week.

Burning trash in a yard is unsafe. Smoke harms the air people breathe, and fire can spread. A managed waste plant has controls that a yard fire does not.

Some trash needs special care

Batteries, paint, strong cleaners, and old medicines need special disposal. They can leak, catch fire, or poison people. A trusted adult can find the right drop-off place.

Wash your hands after touching trash or a garbage can. Pet poop carries germs too. An adult can show you how to use a bag to pick up dog poop and place it in the trash.

A cleanup job must fit what you find. You can help put an ordinary paper wrapper in a bin. Broken glass, needles, and other sharp litter need an adult. Stay back, keep others away, and report the spot.

You breathe all day, at home, at school, and outdoors. Air pollution means harmful gases and tiny bits in the air. Soot and dust are examples of these tiny bits.

Where polluted air comes from

Burning things is a major source. Cars, trucks, and buses give off exhaust fumes. Factories and power plants can release smoke. Burning wood and trash adds smoke too. Wildfire smoke can travel far beyond the fire.

Indoor air can also be polluted. Smoke from cigarettes, a stove, or a fireplace can build up in a room. Strong sprays can add harmful substances. A room with little fresh air can hold these fumes inside.

Some air pollution has no smell or color. A clear view from your window cannot show whether the air is clean.

How it can affect you

Polluted air can sting your eyes, irritate your throat, and make you cough. You might wheeze or find it hard to breathe. Over many years, polluted air can harm the lungs and heart.

Asthma makes the airways in the lungs tight and swollen at times. Smoke or other pollution can start an asthma attack. Asthma itself does not pass between people.

Children's lungs are still growing, and children breathe faster than adults. Children can be affected more by dirty air. So can people with asthma, older people, and people with heart or lung disease.

Smoke reaches people nearby

Secondhand smoke is smoke from someone else's tobacco use. There is no safe level of secondhand smoke. It can cause ear and lung infections in children and trigger asthma attacks. Smoke-free homes and cars protect everyone sharing that air.

Choose a route with fewer fumes

Anya can walk along a busy main road or a quieter street. Both walks take about the same time. She chooses the quieter street with her adult. It takes her farther from much of the traffic exhaust.

Traffic pollution can be worse near busy roads, especially at busy times. A safe path away from traffic can reduce the fumes you breathe. Communities help by providing safe sidewalks and routes, so children have useful choices.

Air can change from day to day. An air quality index, or AQI, gives a number for air pollution. Lower numbers mean cleaner air. Reports appear on websites, weather apps, and the news.

Match the number to its band

One common scale uses these colors:

Children and people with asthma are sensitive groups. At 40, the air is green: play outside as usual. At 120, it is orange: children should choose shorter or gentler outdoor play. At 160, it is red: everyone should cut back on outdoor exercise. A school might move recess indoors.

Why play plans change

Hard running makes you breathe faster and deeper. More polluted air can enter your lungs. A gentler activity or less time outdoors reduces how much you breathe in. Listen to adults and the local air report. If you have asthma, follow your care plan and keep needed medicine available as arranged with adults.

Green means pollution is low and the air is good to breathe. It does not mean there is no pollution at all.

Keep fumes away from shared spaces

An idling vehicle has its engine running while standing still. It still releases fumes. Schools can ask drivers to turn engines off while waiting near doors and windows.

Communities measure air, set pollution rules, provide cleaner buses, and build walking and biking routes. Smoke-free places reduce tobacco smoke around other people. You can walk or bike short trips when safe, or share rides with your family.

Fresh air can help clear germs from shared rooms when outdoor air is clean. On a smoky day, opening windows brings smoke inside. Keep windows closed then and follow your family's or school's plan. The helpful window choice depends on the air outside.

Sound can help you enjoy music or hear a friend's voice. Unwanted or very loud sound is noise. Too much can disturb sleep, concentration, and calm. It can also damage your hearing.

Compare sound levels

Sound level is measured in decibels, written dB. A whisper is about 30 dB. Normal talking is about 60–70 dB. Heavy traffic heard inside a car is about 85 dB. A siren can be 110–129 dB, and fireworks can reach 140–160 dB.

Deep inside your ears, tiny hair cells help you hear. Very loud sound can damage them. Hearing may seem to improve after a day or two, but dead hair cells do not grow back. Hearing lost that way is permanent.

Sounds at or below 70 dB are unlikely to harm hearing. Long or repeated exposure at 85 dB or more can cause damage. Louder sounds can harm you in less time.

Loudness and time work together

For headphones and music players, a World Health Organization standard sets a children's sound allowance of 75 dB for 40 hours a week. A rise of just 3 dB uses that allowance twice as fast. At 78 dB it lasts about 20 hours; at 81 dB, about 10 hours.

Keep headphone volume below 60% of the maximum, and ask an adult to set a volume limit. On a bar with 10 equal steps, 60% is step 6:

Below 60% means below step 6. The device and listening time matter too; a volume bar alone cannot promise safe sound. Speakers at a comfortable level can be a better choice for children.

Make the sound smaller

If you must raise your voice to someone an arm's length away, the place is probably too loud. Turn down the sound, move away, or wear earplugs or earmuffs. In loud places, give your ears about 10 quiet minutes each hour.

At fireworks, Jonah moves farther away with his family and wears hearing protection. Distance reduces sound reaching his ears. If his ears hurt, he leaves the loud area. Ringing or muffled hearing afterward is a warning, even if it fades. Loving a song does not protect your ears from its volume.

Sunlight brings light and warmth. It also brings ultraviolet rays, called UV. You cannot see or feel these rays. They can burn skin and harm eyes.

Check UV, not just temperature

The UV Index tells you how strong these rays are. At 3 or higher, protect your skin. UV is usually strongest from late morning to mid-afternoon. A cool or cloudy day can still have strong UV.

Your shadow gives another clue. If it is shorter than you, UV is higher. A child 4 feet (about 120 cm) tall with a 2-foot (about 60 cm) shadow needs protection. A 6-foot (about 180 cm) shadow late in the afternoon points to lower UV. Clouds can hide your shadow without blocking all UV.

Cover up in different ways

Use shade, covering clothes, a full-brimmed hat, and sunglasses that block UV. A baseball cap leaves ears and neck exposed. Water, sand, snow, and cement reflect UV, so some rays can reach you even in shade.

Put broad-spectrum sunscreen on skin that shows. “Broad-spectrum” means it protects against both main kinds of UV. Health agencies advise at least SPF 15; many skin doctors recommend SPF 30 or higher. Use a generous layer. Reapply about every 2 hours outside and after swimming, sweating, or toweling off.

Sunscreen is one layer of protection. It works alongside shade and clothing. All skin colors need protection. Repeated childhood sunburns raise the chance of skin cancer later. UV also harms eyes; children's eyes let in more UV than adults' eyes.

Plan an outdoor event

Priya's field day starts at noon with a UV Index of 7. Before leaving, she puts on sunscreen, her full-brimmed hat, and UV-blocking sunglasses. Between events, she rests in shade. Two hours later, she reapplies sunscreen.

Schools can plant shade trees, add shelters, and allow hats at recess. Events in early morning or late afternoon usually avoid the strongest UV. Babies 6 months and younger should stay out of direct sun.

A hazard is something that could hurt someone. Risk means how likely harm is and how serious it could be. Shoes lower the risk of cuts near glass. The glass is still a hazard.

Look for problems in buildings

Lead is a metal that can harm a child's growing brain and body. Old paint, dust, soil, and some old water pipes can contain it. Leave peeling paint alone and wash before eating. A child with lead in their blood may show no signs. A doctor checks with a blood test.

Mold grows in damp places and may look fuzzy or spotty. It can worsen coughing and asthma. Report mold so an adult can fix the moisture problem as well as clean it. Wiping a wet wall without fixing the leak leaves the damp place mold needs.

Notice outdoor hazards

Mosquitoes lay eggs in still water. Once a week, help empty water from safe buckets, toys, and flowerpot saucers. Mosquito and tick bites can spread germs. Long sleeves and pants help in buggy places. An adult can help with repellent. After woods or tall grass, check for ticks and ask an adult to remove any you find.

Wild animals and dead animals may carry germs. Leave them alone. Wash after touching pets or farm animals.

On very hot days, take shade, water, and rest breaks. Babies and older people are especially at risk. Never stay in a parked car on a hot day.

Know which things to leave alone

Cleaners and bug sprays can harm people through swallowing, breathing, or skin contact. Do not taste, sniff, or play with them. Leave chemicals to adults; mixing them can create dangerous fumes.

Sharp litter, such as needles, rusty nails, and broken glass, needs an adult too. Stay back, keep others away, and tell an adult where it is.

Use “stop, look, tell”

Kai spots paint flakes falling beside the swings. First, Kai stops and stays back. Next, Kai notices that younger children could pick up the flakes. Then Kai tells the teacher, “Old paint is flaking beside the swings.” The teacher can keep children away and arrange a repair.

A useful report says what you saw and exactly where. Telling about danger helps keep people safe; it is not tattling.

Health helpers work to keep you well and help you get better. Doctors, nurses, pharmacists, and school nurses have different skills. Dentists and eye doctors care for other parts of your health too.

Who does what?

A doctor can write a prescription, an order for medicine. A pharmacist checks the medicine, explains how much to take and when, and checks whether medicines are safe together. Many pharmacists give vaccines too.

Nurses train for their own health jobs and make care decisions. They work in homes, clinics, hospitals, and schools. Their work includes much more than helping a doctor.

Help at school and at checkups

School nurses help with asthma, diabetes, and allergies. They check health records and call families when needed. If your school has no nurse, your teacher or office staff can help you reach care.

You can see health helpers while you are well. At a checkup, a doctor or nurse measures your growth, checks vaccines, and answers questions. A checkup can catch problems early.

Follow one care journey

Ella tells her teacher her throat hurts. The school nurse checks her temperature and calls her dad. At a clinic, a doctor examines her and does a test. The doctor decides she needs a prescription. A pharmacist gives her dad the medicine and explains its use.

Each person helps with a different part of the same problem. Not every sore throat needs the same treatment; the helper finds out what is needed.

You can ask, “What happens next?” or “Will it hurt?” Tell helpers honestly how you feel. Take medicine only from a trusted adult. People of every gender can work in every health job.

Some helpers care for one person at a time. Public health protects whole communities. It helps stop illness before many people get sick.

A team working across a town

A health department or public health office serves a town, city, county, or region. People usually pay together through taxes. Inspectors check restaurants and pools. Nurses run vaccine clinics. Other workers test air and water, control pests, or help families find care.

Water workers, sewer workers, trash collectors, street cleaners, and school custodians protect health too. Their daily work keeps many dangers away before you notice them.

Look for a shared clue

Disease detectives, called epidemiologists, study how illness spreads. They ask who got sick, when it began, where people went, and what they ate. They compare groups to find useful clues.

At a picnic, 20 people eat and 11 become sick. Twelve ate chicken salad; 10 of those became sick. Eight did not eat it; just one of those became sick.

Start with the salad group: 10 sick out of 12 is most of that group. Then check the others: 1 sick out of 8 is a small part. The salad becomes the top suspect. Workers can warn people and test the food. A suspect is something to investigate, not a reason to blame a cook.

A water clue from the past

In London in 1854, cholera was killing many people. Doctor John Snow put illness cases on a map. Many clustered near the Broad Street water pump. He told local leaders. They removed the pump handle on September 8.

Waste had entered that water supply. Snow's work helped people understand that dirty water can spread disease. Mapping and comparing helped him notice a shared source.

Listen when workers send a warning

A health warning may concern unsafe drinking water, polluted air, or a vaccine. It tells people what action to take. Families who follow it help the community team do its job. Health depends on clean water, waste systems, food safety, and prevention as well as clinics and hospitals.

You do not have to find every health service yourself. Start with a trusted adult who listens, cares about you, and helps keep you safe. Think of two people you can ask, such as a parent, grandparent, teacher, or nurse.

Match the help to the problem

If you feel sick at school, tell your teacher. They can help you reach the nurse or office. A rash or pain that stays needs a doctor or nurse. For medicine directions, an adult can ask a pharmacist.

For a broken faucet or empty soap dispenser, tell a teacher or custodian. For brown or smelly tap water, an adult contacts the water service. Trash piling up needs the trash service. A dirty restaurant or spreading illness can be reported to the health department.

Give useful details

Say what is wrong, where it is, and when it started. Compare these reports:

If the first adult cannot help or does not listen, tell another. Keep asking until someone helps.

Know when help cannot wait

If someone cannot breathe, passes out, or is badly hurt, get an adult immediately. If no adult is nearby, call your local emergency number. Learn that number and your address with your family before you need them.

Zoe sees Ben feeling dizzy by the slide on a hot day. She gets the teacher and says, “Ben feels dizzy by the slide.” The teacher helps him into shade and contacts the nurse. Zoe gave clear details quickly.

Learn where reliable help is

Find the school office or nurse's room before a problem happens. Ask your family which clinic you use and where your pharmacy is.

Friends and online videos may share health ideas that are wrong. A doctor, nurse, pharmacist, or health department is a useful place to check. Ask an adult to help you check a claim before acting on it.

A clear floor gives people room to walk. A clean table gives the next person a place to eat. Caring for shared places helps everyone who uses them. Custodians do important work, and small daily actions support it.

Choose a helpful job

In a restroom, flush, keep water in the sink, and put paper towels in the trash. Wash your hands. Report missing soap or broken toilets.

In a classroom, put your things away and throw away used tissues. At lunch, clear your place and use the right bins. Do not eat food that has fallen on the floor. In a park, carry your trash until you find a bin and keep off broken equipment.

At a pool, shower before entering and use the restroom for toilet needs. Try not to swallow the water. Diarrhea means staying out of the pool, because germs can get into the water.

Cleaning and disinfecting do different jobs

Cleaning uses soap or detergent and water to remove dirt and many germs. Disinfecting uses a chemical to kill germs left on a surface. Cleaning comes first: dirt can stop the disinfectant from working well.

You can pick up ordinary paper, put things away, and wipe a table with a damp cloth. Adults handle disinfectants and strong cleaners. They choose the product and use it safely. Children can help keep people away while an adult handles an unsafe spill.

Work through a lunchroom spill

Dani sees spilled milk on the floor. First, she notices that someone could slip. She uses a napkin to soak up a little, then tells a lunch helper so the floor can be mopped. She warns friends to walk around it and washes her hands.

The milk does not need to stay until a custodian happens to see it. A clear report gets help to the right spot. If a spill is unknown or unsafe, stay back and have an adult handle it.

You can ask for changes that help people stay healthy. This is called advocacy. It can be as small as asking for soap or as big as a class request for playground shade.

Turn a problem into a plan

1. Notice a health problem.
2. Find facts by counting, observing, or asking a trusted helper.
3. Decide who can fix it.
4. Make a clear, polite request.
5. Invite other people to help.
6. Check whether the change worked.

A useful request names the problem, why it matters, and the change you want. “The waiting bus sends fumes through our windows. Please ask drivers to turn off engines while waiting” gives the school a clear action.

Use facts from a class project

A class checks four soap dispensers each day for five days. Find the total number of checks:

Seven checks find an empty dispenser. The class writes, “Soap was missing on 7 of our 20 checks. We need soap to wash away germs. Could the dispensers be filled each morning?”

They send the request to the principal, who can organize the refill job. A week after the change, they repeat 20 checks. Only one finds an empty dispenser. Comparing 7 empty checks with 1 empty check shows an improvement.

The count is of checks, not seven different dispensers. One dispenser may be checked more than once. Naming what you counted makes your message clearer.

Choose a way to speak up

You could draw a picture, help make a poster, write a letter, or speak to your class. A teacher, nurse, or family member can help you check facts. Classmates can add support and help with follow-up.

Use kind words that invite people to join you. “Let's wash before lunch” offers a shared action. Blaming someone for germs makes it harder to work together. Children can notice problems adults have missed, and a clear request gives adults something useful to act on.