2nd - 6th Grade Engineering and Science Inquiry Resources : Page 7

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

In this activity, your student will be invited to build a chair out of building blocks that is designed to meet the specific size and shape of a small doll or toy figure.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

This basketball project explores the best way to make the perfect shot every time.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

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!

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Have your child kick off their summer vacation by making a miniature water slide!

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

This classic children's game demonstrates how sound travels through air vs. through a solid.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

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.