4th - 7th Grade Engineering and Science Inquiry Activities : Page 3

In this activity your child will create their very own marble maze!

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!

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

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

Check out this cool science fair project on identifying rocks and minerals for kids.

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

In this design challenge, your child will create a parachute for a small toy using typical household items.

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 determines what household items are good conductors of electricity.

Find out whether a longer airplane will fly farther or a wider paper airplane.

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

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

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.

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?

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

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

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

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!

In this science fair project, students make their own rain gauge to measure rainfall.

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

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.

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

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 which fruit molds the fastest.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

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

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.