Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Show your child how to concoct a simple duo of household ingredients that changes color as acids and bases are added!

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Here is a nifty science experiment using Epsom salts to make "frost" appear on a piece of glass.

Is your child a young ornithologist in the making?

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

Create a self-portrait from natural materials in this collage craft activity!

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

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

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Teach your child how butter is created by shaking up cream the old-fashioned way.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

In this project students experiment with making music using only glasses of water.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

This science project teaches students to classify different shapes of leaves.

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.

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

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

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.