What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

This science fair project idea investigates whether plants can survive being frozen.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

This activity will introduce your child to the four different components of blood and give him a fun way to visualize its properties.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

Your child can use leaves and grass to create his own outdoor art in celebration of Earth Day...all he needs are is the great outdoors and some creativity!

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This classic children's game demonstrates how sound travels through air vs. through a solid.

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

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!