How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

This science fair project idea examines the reason boats are shaped and engineered.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

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 activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Cleaning can be a chore, but not with this sudsy experiment!

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.