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

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

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 classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

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

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Test whether plants can grow without sunlight and water.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

This science fair project teaches students the differences between fruits and vegetables.

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.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

This biodiversity project examines the biodiversity in your own backyard.

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

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This science fair project idea explores the different properties of matter.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.