Preschool - 5th Grade Engineering and Science Inquiry Activities : Page 2

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

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

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

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

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

In this fun experiment, we'll find out how color affects heat absorption!

Make your own greenhouse - out of a balloon! Your child will learn how greenhouses work as they plant radish seeds and watch them grow.

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.

Discover how and which salt melts ice the quickest.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

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

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

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

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.

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

Start your toy engines -- this is going to be a fast and friction-filled race!

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

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.

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

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

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

This project examines whether people's taste perception is influenced by what they see.

This science fair project idea investigates which objects float and sink in honey, water, and oil.