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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 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.

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

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

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

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

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

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

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

Introduce your child to preliminary science concepts by challenging them to do this fun and simple cloud observation activity.

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

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

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

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

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.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

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!

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

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.

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.

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

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

This is a fun and inexpensive project and it's a great way for your child to build basic geometry skills, like shape recognition and pattern/angle familiarity.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?