Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

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

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Discover whether a metal will expand under hot water.

In this project, waves of vibrations are experimented with using water in glasses.

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

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

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

This project investigates the affect of storage temperature on microwave popcorn.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

Take advantage of the spring and summer sun in this arts and crafts activity that has your learner creating pretty flower prints.

Examine the effect of pressure on carbonation in soda.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

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