1st - 7th Grade Engineering and Science Inquiry Activities : Page 4

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Discover whether a metal will expand under hot water.

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.

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

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

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

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

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

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

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

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 where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

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.

In this project, you will observe and record changes in sunspots over two weeks.

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

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!

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

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

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

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

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

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

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

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.