Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Have your child kick off their summer vacation by making a miniature water slide!

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

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Nature is the greatest teacher, and you can help facilitate the lesson! Here's how to create a supply backpack to get your kid ready for science action!

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Construct and experiment with a periscope using reflected light rays to gather an image.

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

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Do different types of oil mix or stack? Find out in this science fair project idea!

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

This clay "painting" activity encourages and supports creative development and critical thinking skills.

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

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Looking for a fun summer adventure? Learn what it was like to be a prospector during the California Gold Rush by panning for gold in a local creek.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

Try this chemistry experiment with your curious kid and get some "shocking" results!

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

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?

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

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

Give your budding young observers a chance to discover simple machines at use in their own home.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.