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4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

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.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

Help your young learner discover why the insects that a spider eats stick to its web but the spider doesn't.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

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

This biodiversity project examines the biodiversity in your own backyard.

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

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

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

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

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

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

How do organic materials become soil? This science experiment measures what materials biodegrade.

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!

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

This science fair project idea examines which type of insulation holds in the most heat.

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.