This science fair project idea determines which method of hand cleansing is the most effective.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Introduce your child to the amazing, almost magical phenomenon of static electricity!

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Some fossils have been been preserved for billions of years! Help your kid understand how fossils are created and preserved with this crafty project.

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

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

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

This science experiment tests if dog saliva can really help heal wounds.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

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.

In this activity, your kid will watch coal turn into crystals right before her very eyes, and learn some science along the way!

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

Find out which type of sponge holds the most water.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!