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

This is a fun and inexpensive project and it's a great way for your child to build basic geometry skills, like shape recognition and pattern/angle familiarity.

In first grade, children are introduced to fractions. Here's a recipe that combines fraction practice with winter fun and lets kids actually paint the snow!

This experiment will explore the possibility of creating an infinite object by hand.

This science fair project aims to examine the nature of pi and analyze other properties and values related to circles, such as radius, diameter

This experiment examines if space objects become round after reaching a certain mass.

Encourage your child to jump into sea creature science by creating her own colorful "socktopus" sculpture.

Here's an arts and crafts activity for preschoolers and pre-kindergarteners: build brick buildings with homemade mud bricks made from dirt and water.

This science fair project idea explores how length affects the weight a bridge can hold.

I scream, you scream, we all scream for homemade spearmint ice cream!

How much water comes out of snow? Explore this timely question with your kindergarten scientist with this easy winter experiment.

Demonstrate the relationship between mass, volume and density. Measure displaced water, and weigh object to calculate mass and density.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

This science fair project idea investigates how images are influenced by changes in light.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.