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Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

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

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

This science fair project will help students learn about non-vascular plants, such as mosses.

This project compares the strength of one, two, and three-ply toilet paper.

Discover how and which salt melts ice the quickest.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

Take a dive into the candy jar with this yummy science experiment.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

This science fair project idea examines the reason boats are shaped and engineered.

This science fair project idea experiments with spinning color wheels and optical illusions.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

This science fair project teaches students about wilting and browning of salad greens.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.