Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

This science fair project idea explores substances that cause a bubble to last longer.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

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

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Check out this cool science fair project on identifying rocks and minerals for kids.

This science fair project idea investigates how the shape of an object affects drag.

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

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

The goal of this project is to create an exciting topographical map out of dough.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

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.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

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!

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

Do you think heat can affect a plant's growth rate?

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

This science fair project idea provides evidence that air is everywhere and takes up space.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

This science experiment tests if dog saliva can really help heal wounds.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.