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What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

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!

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.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

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.

This project compares the strength of one, two, and three-ply toilet paper.

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

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

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

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!

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

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

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.

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

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

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

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

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

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

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.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!