Health Grades K-6

This video gives a description of women's monthly menstrual cycles or periods. The video includes information about the biological and hormonal changes during the cycle.

This 2-minute video explains how traits pass from parents to offspring. Learn how each offspring is a mix of inherited traits.

An insurance company made this video about the hidden costs of consumer products.

Find out how your schoolwork relates to real work in a TV station, as an audio engineer, TV director or TV producer.

Do you need help getting confidence to speak in class and make presentations? You can try listening to your body, watching and copying others actions, taking deep breaths, using humour and making positive statements. Check out this link to learn more!

Where does confidence come from, and how can you get more of it? This video explains confidence and self-esteem and gives us three easy tips to boost confidence.

After a concert, you find it difficult to hear your friend rave about the show because of the ringing in your ears. But the next morning, the effect has mostly worn off. So what caused these symptoms? And can you go to concerts without damaging your ears?

The speaker in this video shares a story about being a volunteer firefighter. He explains how every person can be a hero and be extraordinary.

When a golfer misses a shot in an important competition, it's called choking. How can you learn to stay calm and do your best without choking? Watch this TED ED video to find out!

Find out where sugar is hiding in foods you might not expect, like peanut butter and pasta sauce. What are all of sugar's aliases?

Water is essentially everywhere in our world, and the average human is composed of between 55 and 60% water. So what role does water play in our bodies, and how much do we actually need to drink to stay healthy?

Are you a left-brained person or a right-brained person? Spoiler: You're neither. Each of us uses both sides of our brain for most of what we do. But still, there are a number of brain functions that do show lateralization, where they are localized to one side or another. Why is this?

Why are our bodies so symmetrical, but our guts aren't? How does your body know where it's parts should be?

We've got two perfectly good hands attached to two perfectly good arms, so why do most people prefer to use one over the other for common tasks?

Explore the body with these short animated movies from KidsHealth. Students can learn about bones, the nervous system, nails, the lungs and many more body systems.

This is an article that includes short videos with reasons to not smoke plus information about thirdhand smoke.

Look at different school scenes and decide when hand washing is the best thing to do. Then, try to find five germs on the computer hand! Yuck!

Try some fun ways to learn about how to protect your hearing from noise-induced hearing loss! Play a game or take a quiz to test how much you know about noise and when it becomes dangerous to your hearing.

Did you know almost every food you eat has something that you need to stay healthy? Let's learn about how to group foods in this video!

Did you know that what you eat can help or hurt your body? Find out what the best foods are to eat to help your body in this video!

More than 300 million people around the world suffer from asthma, and around 250,000 people die from it each year. But why do people get asthma, and how can this disease be deadly? Christopher E. Gaw describes the main symptoms and treatments of asthma.

Being hungry generates a powerful and often unpleasant physical sensation that’s almost impossible to ignore. After you’ve reacted by gorging on your morning pancakes, you start to experience an opposing force: fullness. But how does your body actually know when you’re full?

Inside you, a daily battle is being waged and your immune system is at the frontline. Most of the time, you may not even notice it's there, but over the course of your life your immune system will guard you against hundreds of potentially fatal threats

Today, glasses help millions of people with poor vision be able to see clearly. But how? Andrew Bastawrous and Clare Gilbert help unravel the answer by explaining refraction — the ability of a transparent medium, like glass, water, or the eye, to change the direction of light passing through it.

Over our lifetimes, our bodies undergo a series of extraordinary metamorphoses: we grow, experience puberty, and many of us reproduce. Behind the scenes, the endocrine system works constantly to orchestrate these changes. Learn more here!

Katharina Ribbeck reveals the mysteries of this transparent, shape-shifting layer that moistens and lubricates the vulnerable parts of our body while rendering us invisible to potentially deadly microbes.

Humans should urinate at least four to six times a day, but occasionally, the pressures of modern life force us to clench and hold it in. How bad is this habit, and how long can our bodies withstand it?

It may be antiquated now, but the old pearl of wisdom: “Don’t sit too close to the TV” was good advice in the 1960s.

You're lifting weights. The first time feels easy, but each lift takes more and more effort until you can’t continue. Inside your arms, the muscles responsible for the lifting have become unable to contract. What’s going on?

Most of us don’t need more than one whiff to identify that generally unpleasant, characteristic smell we call body odor. But it’s a surprisingly complex phenomenon, influenced by our genetic makeup, age, diet, and hygiene. So what is this odor, exactly?

Fortunately, doctors today don’t resort to power tools to cure headaches, but we still have a lot to learn about this ancient ailment. Dan Kwartler shares what we know (and don't know) about headaches.

If you’ve never had a nosebleed before, the first one can be terrifying. Why is blood pouring out of your face?

You've probably heard that if you swallow chewing gum, it stays in your stomach for 7 years. But is that true? What happens if you swallow gum?

We have over 600 muscles in our bodies that help bind us together, hold us up, and help us move. Your muscles also need your constant attention, because the way you treat them on a daily basis determines whether they will wither or grow.

If you touch your face after touching a surface with a virus, the virus can infect you. But there are two extraordinarily simple ways you can keep that from happening: soap and water, and hand sanitizer. So which is better?

Most of us are no stranger to an occasional case of the hiccups. But what causes these ‘hics’ in the first place?

The average person experiences dozens of individual itches each day. We’ve all experienced the annoyance of an inconvenient itch — but have you ever pondered why we itch in the first place? Is there actually an evolutionary purpose to the itch, or is it simply there to annoy us?

Flatulence is a daily phenomenon. In fact, most human beings pass gas 10-20 times a day (yes, that includes you). Where does your bodily gas come from?

Sometimes you see something on the Internet that makes you feel uncomfortable. It might happen when you are playing a game online or when someone texts you a bad picture. When something like this happens you need to tell an adult you trust.

This video explains why it’s important to stick with your real friends in the real world and only accept online friends you know in real life.