Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Plants and light seem to be good buddies, but how far does the friendship really go?

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

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

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

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

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

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!

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

People have favorite flavors, but what about ants? Which ant food is the most popular?

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.