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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.

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

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

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!

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

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

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.

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.

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

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this project students experiment with making music using only glasses of water.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

This science fair project idea examines the reason boats are shaped and engineered.

Have your child kick off their summer vacation by making a miniature water slide!

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Try this chemistry experiment with your curious kid and get some "shocking" results!

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

In this experiment we will be determining whether birds prefer certain colors of seed.

Help your child learn about animal classification with this fun and delicious activity.

This project determines what category of person is most likely to be ticklish.

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

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

The goal of this project is to create an exciting topographical map out of dough.