This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

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.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

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

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

How do organic materials become soil? This science experiment measures what materials biodegrade.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Examine the effect of pressure on carbonation in soda.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

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

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

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

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

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

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

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

This science fair project idea examines whether boys and girls differ in reflexes.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

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