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.

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

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

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

In this fun activity, your child will create their very own solar oven to bake s'mores!

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.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

In this experiment you will replicate the mummification process by making a hot dog mummy.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Examine the effect of pressure on carbonation in soda.

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

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.

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

An home science experiment for older students that teaches about the science behind heat.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Help your child plant a "tea garden": a garden made of herbs for making teas.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.