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

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

In this fun activity, your child will create their very own solar oven to bake s'mores!

Discover whether a metal will expand under hot water.

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

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Determine whether butterflies like to drink sugar water, salt water, or plain water.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

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

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

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

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

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

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

This science fair project idea compares biodiversity between drops of water.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

Help your own young scientist tackle the wonders of static electricity from the comfort of his own home!

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.