4th and 5th Grade Engineering and Science Inquiry Resources : Page 2

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

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

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Learn all about balance and motion as your child designs a corn maze!

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.

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

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

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

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!

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

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.

Find out whether packaged seeds actually do expire in this new science fair project idea.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

This science fair project idea explores whether talking to a plant will help it grow.

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

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

Discover how and which salt melts ice the quickest.

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

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

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

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

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

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

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!

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

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.

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

This science fair project idea determines what household items are good conductors of electricity.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.