Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

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

Take the art making outside: have your first grader make a clay relief sculpture of the natural world. This is a great activity for summer.

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

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

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

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

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.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

This science fair project idea determines what household items are good conductors of electricity.

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

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!

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

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

Take a dive into the candy jar with this yummy science experiment.

Celebrate autumn with a seasonal bash. Welcome the fall with a festive party for your little one and her friends, full of crafts, snacks and fun games.

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Test your friends to find out if you can replicate the placebo effect's incredible results.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Word color association is just a fancy way to talk about the way we connect colors with words.