Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

This project determines what category of person is most likely to be ticklish.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

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

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

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.

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.

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.

Looking for a fun summer adventure? Learn what it was like to be a prospector during the California Gold Rush by panning for gold in a local creek.

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.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

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!

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

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

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

An home science experiment for older students that teaches about the science behind heat.

This science fair project idea investigates the difference in reaction times between boys and girls.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

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

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.