STEM Activities for Kids (482 results)

Waves in Slow Motion

STEM Activity

32 reviews

Have you ever noticed seagulls bobbing up and down on the ocean while surfers paddle forward to catch a wave? Maybe you remember floating on a lake, going up and down as a wave passed by, or the feeling of being swept ashore by a breaking wave. Water waves are fascinating. They come in all sizes, from a tiny ripple to monster waves that are ten meters high. You have seen them, but do you know what drives them, how they move across oceans and seas? In this activity, you will bring the… Read more

Afterimages: The Colorful Tricks Eyes Play

STEM Activity

59 reviews

Have you ever wondered how visual illusions are made? When we see special effects in movies, or a magic show, we often witness illusions that challenge our ability to correctly perceive things. One way in which our eyes play tricks on us is through afterimages. Afterimages are the images you see after staring at an object for several seconds and then looking away. In this science activity, you will look at afterimages to reveal the secrets of how your eyes see color. Read more

Apparent Motion in Flipbooks

STEM Activity

37 reviews

Have you ever been tricked by an optical illusion? Optical illusions can be fun, but they are also quite scientific. In this activity you will investigate the phenomenon of apparent motion by making your own flipbook animations. Read more

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Make String from Algae

STEM Activity

215 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

Balloon Magic with Bernoulli's Principle

STEM Activity

39 reviews

Have you ever seen pictures or videos of a roof being blown off a house during a hurricane or tornado? You might be surprised to hear that the roof is actually not pushed off by the strong winds but instead by the air inside the house! This can be explained by Bernoulli's principle, which states that fast-moving fluids or air, such as strong winds, have lower pressure than slow-moving air. In this activity you will demonstrate how balloons can be moved in a similar way. It is not quite as… Read more

Build a Cooler

STEM Activity

134 reviews

How does a cooler keep things cold? Which material makes the best insulation? Try this project to find out how long you can keep an ice cube from melting once it's out of the freezer! Read more

DIY Mini Propeller Car

STEM Activity

86 reviews

Build your own mini propeller car with craft materials and a simple circuit in this fun STEM activity! Read more

Do-Re-Mi with Straws

STEM Activity

37 reviews

Have you ever wondered how a musical instrument produces the beautiful sounds that it does? To make a certain note, the instrument has to make a certain sound wave. Depending on the instrument, the sound wave that is made can be affected by changing the length of part of the instrument, such as the strings in a piano or on a guitar, or a trombone’s air column. In this science activity, you will make your own musical instruments using drinking straws and explore how changing the length of the… Read more

Flying Helicopters on Mars

STEM Activity

64 reviews

During the Mars 2020 mission, NASA plans to explore the surface of Mars using a rover in combination with a lightweight helicopter. To be able to fly on Mars, this helicopter must be super light and have very efficient blades. If not, it will never generate enough lift to get off the ground. In this activity, you will make your own paper helicopter and test different blade designs. Will your findings be reflected in NASA's design? Try it out and see for yourself! Read more

Holes That Do Not Leak!

STEM Activity

42 reviews

Did you know that at sea level there are about 15 pounds of air pressing on each square inch of your body? This air is very helpful in our daily lives. For example, this layer of air helps to keep the Earth from getting inhospitably cold or hot. It can even help keep a bottle with holes in it leak-free! Try the activity to find out how. Read more

Investigate Alien Genetics

STEM Activity

123 reviews

Have you ever wondered why biological siblings look so much alike? Why do they often share physical traits, such as hair color or eye color? It all has to do with their genes. Genes are passed on from parents to their offspring. This means that you share some of the same genes with your biological parents and siblings! In this activity, you will use an alien model to demonstrate how genes or physical traits are passed on from parents to their offspring. How similar will your alien siblings look? Read more

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