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

Check out this fun and easy-to-play guessing game that will build your child's geometry vocabulary.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

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

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

In this activity, learners will discover how to make a basic water filtration system using common materials found around the house or outside.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

These sparkling earrings look fancy but they're super simple to make using inexpensive craft items.

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

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Using an empty plastic bottle, your child can create a newfangled version of this African percussion instrument.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This Kool-Aid tie-dye activity is a kid-friendly craft that never gets old. Learn how to make tie-dye shirts using assorted Kool-Aid flavors here.

Using wholesome, natural ingredients like oatmeal, honey and raisins your child can make homemade granola bars!

Get ready to make a dollar...using playing cards! The first player to accumulate the amount of points equal to a dollar wins.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

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

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Turn snack time into a healthy ho-ho-holiday activity! Make a face that looks like a cartoon Santa using fruits. It will be a fun activity that will get your family in the holiday spirit, and spice up your snack time with healthy treats.

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

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Test whether plants can grow without sunlight and water.

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