This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Practice conversions within the metric system in this fun math card game for third graders.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Here's a place mat your second grader can create, based on the classic frontier tradition of patchwork quilting.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Get estimating with this spooky activity that asks your young mathematician to rely on their problem-solving skills to figure out how many items they believe are in spooky Halloween jars!

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.