Second Grade STEM Activities for Kids (195 results)

How to Make Slime

STEM Activity

356 reviews

It's gooey. It's sticky. It's slime! Learn to make your own homemade slime with this quick and easy recipe. Read more

Make a Lemon Volcano

STEM Activity

1182 reviews

Make a colorful erupting volcano in your kitchen with lemons and baking soda! Read more

Explore Glow-in-the-Dark Water!

STEM Activity

214 reviews

Have you ever been fascinated by things that glow in the dark? It can be a lot of fun to play with bracelets, wands, and other toys that are glow-in-the-dark, like some stickers and creepy, crawly, plastic insects! Have you ever wanted to make something at home that glows? It turns out that it is not that hard to do — all you need is tonic water and a black light! Some common household chemicals can also affect this beverage's glow. In this science activity, you will make tonic water glow… Read more

Featured

Make String from Algae

STEM Activity

225 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

Walking Water

STEM Activity

249 reviews

Imagine this challenge: You have two glasses of water—one empty and one full. You want to pour half of the full glass into the empty one. The twist? You aren't allowed to pick up either glass! Can you get the water to "walk" between the glasses using nothing but a paper towel? Try this activity to find out! Read more

Erupting Diet Coke® with Mentos®

STEM Activity

326 reviews

Have you ever seen the Diet Coke® and Mentos® experiment, which is all over the Internet, and wondered what makes the reaction work? You might think that there is some ingredient in a Mentos candy causing a chemical reaction with the soda, like the way baking soda reacts with vinegar. But the amazing eruption that takes place when Mentos are dropped into Diet Coke is not a chemical reaction at all! Instead it is a physical reaction. That means that all of the pieces of the reaction… Read more

Make a Whirlybird from Paper

STEM Activity

128 reviews

Have you ever seen a helicopter flying through the air? Have you ever wondered how they fly—or if you could try flying one yourself? This fun activity will help you get started at home building a simple paper helicopter. And you will learn a little bit about what keeps these amazing vehicles aloft. Read more

DIY Mini Drone

STEM Activity

305 reviews

Quadcopters, also called drones, are a fun and popular toy. Explore the world of drones as you build your own mini drone using popsicle sticks in this fun activity. See this page for a complete list of our mini drone projects. You may wish to do the projects in order. Read more

Make a Cotton Ball Launcher

STEM Activity

490 reviews

Have you ever stretched and launched a rubber band at someone? Put that energy to good use and build a rubber band-powered cotton ball launcher in this fun activity! Read more

Build a Wind-Powered Car

STEM Activity

372 reviews

Is that a sailboat or a sail...car? Design and build a toy car powered by the wind in this fun engineering project! Read more

Exploring Enzymes

STEM Activity

129 reviews

Have you ever wondered how all the food that you eat gets digested? It is not only the acid in your stomach that breaks down your food—many little molecules in your body, called enzymes, help with that too. Enzymes are special types of proteins that speed up chemical reactions, such as the digestion of food in your stomach. In fact, there are thousands of different enzymes in your body that work around-the-clock to keep you healthy and active. In this science activity you will investigate… Read more

Explore Our Science Videos

How To Build a Rube Goldberg Machine | STEM Lesson Plan

Make 3D Printed Fabric | STEM Activity

Arduino Self-Driving Car Lesson 4: Using the Ultrasonic Sensor