Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

Do you think heat can affect a plant's growth rate?

This science fair project idea determines exactly how much of an effect road grade has upon a cyclistâs speed.

Determine whether the relationship between a personâs armspan and height are genetic.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Use applied math to model orbital eccentricity in this cool science fair project for 7th grade.

How is NASA able to launch something into orbit around the Earth? Learn about the relationship between gravity, speed, and orbit in space in this cool project!

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

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.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

In this science fair project, students determine whether a bean plant grows faster and taller using a traditional soil planting method or hydroponic method.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Check out this fun science fair project idea to measure bacterial colonies from door handles and explore the effectiveness of different cleaning agents.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

Science fair project idea that compares number and relative sizes of leaf stomata. Collect leaves of plant species, identify, observe stomata with microscope.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

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 will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

In this science fair experiment, kids will use the acid test to discover how to tell one mineral from another.

Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

In this cool elementary school science fair project idea make a model to learn what happens to the Earth's surface when ice moves over land.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.