The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

This simple experiment serves as an introduction to the greenhouse effect.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Find out which type of sponge holds the most water.

Children use their design thinking skills and powers of observation to create and construct a bird nest.

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

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

In this activity, your kid has your permission to get his socks nice and filthy. In fact, it's a necessity, because those socks are going to make a garden.

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.

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

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Learn how to use the Punnett Square to predict the gene combinations of dominant and recessive traits in this fun and easy genetics science project!

Introduce your child to preliminary science concepts by challenging them to do this fun and simple cloud observation activity.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

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

Boiling water in a paper cup is possible because of convection and the thermal properties of water and paper. Learn how with this fun science fair project idea.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

This homemade parachute toy is incredibly easy to build. Plus, it gives kids an excuse to investigate and experiment...the backbone of kindergarten science.

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!

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

Discover the wonders of simple clay by pressing flowers into a modeling medium!

This science fair project idea determines if the color of light affects the growth of plants.

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.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!