In this science fair project idea, kids make water dance on the surface of a hot pan with the Leidenfrost Effect.

Determine which metal has the highest rate of conductivity.

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Science fair project that demonstrates how a rainbow forms, by using water to split white light into its many colors.

Can you wink? Is your ability to wink genetic or simply based on chance? Find out in this science fair project idea!

Test whether plants can grow without sunlight and water.

Demonstrate which cooking method gets rid of the most fat.

This science fair project idea compares the mass and density of objects.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

This project examines how temperature affects the volume of gas in balloons.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

In this experiment we use Scotch Guard to make sand that resists water.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

This experiment will explore whether adding different substances to a gel affects its strength.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

In this science fair project, students create their own miniature salt flats at home.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

This science fair project examines whether ocean water can be made safe to drink.

Explore if planting seeds in a certain direction will affect how fast it germinates.

Use pepper and soap to discover some fun facts about the properties of water.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This science experiment explores why leaves change color in the fall and the role of photosynthesis in leaf coloration.

The objective of this free science fair project is to examine the way in which the phases of the moon affect circadian patterns in mammals.

Test whether cutting up meats will make it cook faster than just cooking it whole.