In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

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!

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

In this activity your child will create their very own marble maze!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

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.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

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

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

Determine if gender affects the ability to identify different smells.

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

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.