Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

In this science fair project you will make a model of a cell membrane using very simple material.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

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

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

The project investigates how friction affects motion by using different surface textures.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

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.

This science fair project idea determines what household items are good conductors of electricity.

In this project, waves of vibrations are experimented with using water in glasses.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

In this project students experiment with making music using only glasses of water.

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.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

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

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.