Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

A project to reinforce learning about the layers of the rainforest, rain forest ecosystem, and the greenhouse effect.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

This science fair project idea explores what it takes to create a biosphere, or a self-sustaining ecosystem.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.

This biodiversity project examines the biodiversity in your own backyard.

This science fair project idea compares biodiversity between drops of water.

Use simple materials to build a "worm hotel" with your kindergarten soil scientist...and see what worms really do all day.

This fun activity makes use of pasta shells, paint, and glue make a crab while your child learns about this unique creature.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

Science fair project that examines the biodiversity of ant populations in various locations.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

Inspire your child to learn about an amazing animal as she creates her very own polar bear habitat.

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.

This activity will help your child review science concepts, learn new ones, and become familiar with examples of various concepts in science. Plus, it's fun!

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

This science fair project idea investigates food preference of birds.

This project examines the concentration of dissolved oxygen in water, with and without oil.