2nd - 6th Grade Science Activities : Page 3

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.

Start your toy engines -- this is going to be a fast and friction-filled race!

In this activity, your child will be challenged to make a tower using paper cups.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

This experiment will evaluate if chewing gum affects students' test performance.

Find out whether packaged seeds actually do expire in this new science fair project idea.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

In this project, you will observe and record changes in sunspots over two weeks.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

This project examines whether people's taste perception is influenced by what they see.

Your child will create her own falling snowflakes using white paper and glue them over a tree, so it appears as if they are falling from the sky.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

This science fair project idea investigates how magnetism can defy the force of gravity.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.