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Human Biology & Health STEM Activities for Kids (45 results)

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Can you see your Hole hand?
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4 reviews
Have you ever stopped to wonder why we have two eyes, but we only see one image? Usually you only see one image because your brain takes the information from your left eye and your right eye and combines them, without you even noticing! But sometimes your brain is too smart for its own good; it makes assumptions (or guesses) about the things we are seeing. When your brain makes guesses it can sometimes make mistakes, as it does in this experiment!  Read more
Cardiovascular System Science: Investigating Heart Rate Recovery Time
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As Valentine’s Day approaches, we’re increasingly confronted with stylized images of the heart. Real hearts serve very important functions – a person’s heart beats to supply blood to their entire body, and the heart has to work harder when they exercise. Have you ever wondered how quickly your heart beats when you exercise, or how long it takes to recover back to its normal rate after you’re done exercising? In this science activity, you’ll get to do some… Read more
Cold or Warm, Can We Really Tell?
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13 reviews
Have you ever tried to guess the temperature of the water in the pool? On a hot day, the water might feel chilly at first, but once you’re in, you don’t notice the temperature as much. On a cool day, though, the pool water that is the same temperature often feels quite comfortable. Is it all relative? Is our body equipped to tell absolute temperature? The question might make you curious about how our body collects information about our environment, processes it and forms our… Read more
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Make String from Algae
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212 reviews
Did you know that the seaweed you've seen in the ocean or even eaten as a snack is inspiring innovators to imagine new materials? Large brown algae, like kelp, contains polymers—long chains of molecules—that are more environmentally friendly than the ones in most plastics. These natural polymers (alginates) could eventually be used to create sustainable everyday objects. Try your hand at using a bit of chemistry to turn biodegradable polymers from algae into your own custom… Read more
DIY Face Mask
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13 reviews
To slow the spread of COVID-19, the CDC recommends wearing a mask or cloth face covering—particularly in places where it is impossible to maintain social distancing (staying at least 6 feet away from others). This recommendation is for everyone age two or older (children under the age of two should not wear masks). Many instructions to make your own mask are available online. This activity will help you think through the process of designing and making a mask as an engineering problem.… Read more
Do You Love the Taste of Food? Find Out if You Are a Supertaster!
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2 reviews
Have you ever noticed that some people are a lot pickier about the food they eat than other people are? They might be more selective because they are supertasters! To supertasters, the flavors of foods are much stronger than to average tasters. Whether or not someone is a supertaster comes down to the taste buds on his or her tongue, and you can actually investigate a person's supertaster status by looking at this. Are you a supertaster? Find out with this tongue-based activity!    Read more
Exploring the Depths – of Vision!
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10 reviews
Did you know that there is a type of clam that has thousands of small eyes covering its body? It’s called the Tridachna gigas, and it lives in the South Pacific Ocean. Although it has a lot of them, the Tridachna gigas’ eyes are fairly primitive compared to ours (so don’t be too jealous that you don’t have thousands of eyes too!).  In modern times, all vertebrate animals (including humans) have two eyes. Humans have developed an amazingly complex visual processing… Read more
Floating Arms
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Have you ever wondered how a decision to move your arm can make your arm move? When your brain creates a command to move your arm, nerves pass along the command and muscles in the arm contract as ordered. These muscle contractions make your arm move. But could your arm move without a command from the brain? This activity is a fun and surprising way to find out! Read more
How Strong Is Your Hair?
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27 reviews
Have you ever wondered how strong hair is? When we talk about our hair we usually discuss color, length or texture. But what about hair strength? If you look at a strand of hair, it looks like a very thin string. In fact, it is on average only about 0.1 millimeters thick. It doesn't seem like such a thin string could withstand much force. How much weight do you think a single strand of hair can carry? In this activity you will put a hair to the test and find out. You might be surprised by your… Read more
How to Help Pass Gas
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Has your stomach ever ached so bad you felt as if it was blown up like a balloon—maybe after the big Thanksgiving meal? You may have had a large amount of gas trapped in your stomach and intestines. But where does the gas come from that makes you feel so uncomfortable, and how does it disappear again? In this activity, you will blow some bubbles to investigate how a specific medicine can help you feel better, so next time your tummy hurts because you are bloated, you will know how to cure… Read more
Pinocchio’s Arm: A Lie Detector Test
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9 reviews
Did you ever think of lying as an interesting social skill? Lying is actually tied to empathy, the ability to see things from another person’s perspective. Most humans begin to develop these skills around the age of three, when they begin to understand that what they know about the world might be different from what other people know about the world. Telling lies might be a skill, but lies can be bothersome. Sometimes, you really like to know how to tell a truth from a lie. Will the… Read more
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