2nd - 8th Grade Engineering and Science Inquiry Activities : Page 2

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

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

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.

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!

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

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.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

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

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

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

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

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

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

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

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

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

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

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

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

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

In this activity, your child will be challenged to make a tower using paper cups.

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 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.

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

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

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

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.