4th - 6th Grade Science Projects Activities : Page 2

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

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.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

This experiment explores the question of whether age and/or gender play a role in people's ability to remember dreams.

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Take a dive into the candy jar with this yummy science experiment.

This science fair project idea investigates how magnetism can defy the force of gravity.

Science fair project which identifies the most effective insulator that you could use to make a winter coat by comparing how well cloth and cotton trap heat.

Discover how and which salt melts ice the quickest.

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

This experiment evaluates if a noisy environment makes it harder for test subjects to perform tasks that require hand-eye coordination.

Find out which type of sponge holds the most water.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

This experiment will evaluate if chewing gum affects students' test performance.

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

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

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

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