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This science fair project will help students learn about non-vascular plants, such as mosses.

Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.

Check out this cool science fair project idea to learn why it is important for kids to eat healthy foods like fresh fruits and vegetables.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Determine whether carpet placed on a lawn will kill grass and weeds. Choose an area of lawn that you would like to remove, record grass that is dead or dying.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

This science fair project explores how salt and sugar affect the melting rate of ice in water.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Take the plunge into handcrafting with this neat and tidy soap recipe. Here's how to create your own personalized soap.

Science fair project that examines condensation and the conditions needed in order for dew to form.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Make this easy composting dessert and then enjoy the yummy results!

This clay "painting" activity encourages and supports creative development and critical thinking skills.

This science fair project idea explores whether dogs do look like their owners.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

This science fair project investigates how temperature of a room affects the burn rate of a candle.

Use natural materials to try out a new kind of weaving. Your child will enjoy gathering their materials outside and then using them to create a piece of art!

Fibonacci sequences have been observed throughout nature, like in leaves and flowers. In this project, students find examples of the Fibonacci sequence.

This project investigates several commercially decaffeinated tea types (black, green, oolong, white) for the presence of detectable traces of caffeine.

This surprisingly good glue recipe comes from common kitchen items.

This science fair project tested various nose cones to determine which would be the most ideal shape for propelling a water rocket.

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

In this science fair project caffeine will be extracted from Gunpowder Green Tea, illustrating the isolation of a naturally occurring product from a plant.

This science fair project idea examines the reason boats are shaped and engineered.