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Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

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

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

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

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.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

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.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Teach your child how butter is created by shaking up cream the old-fashioned way.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.