This science fair project idea explores what common compounds can be easily separated out in a centrifuge.

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

In this activity, your kid will watch coal turn into crystals right before her very eyes, and learn some science along the way!

The perfect activity for a rainy day, or any time your little one moans, "Moooo-oom, there's nothing to do!"

Do different types of oil mix or stack? Find out in this science fair project idea!

Spruce up some sneakers that have seen better days by turning them into a sparkly dress-up staple.

In this experiment, your middle schooler will chart the effects of oil on a feather in order to grasp the tragic effects of oil spills on wildlife.

Instead of heading to the craft store, take a step back in time and restock your art supply with this easy recipe for homemade ink.

This science experiment uses a hard-boiled egg as a pretend tooth and shows reluctant brushers the importance of tooth care!

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.

Find out which part of a flame burns wood the fastest and also if this is true for all types of flames such as candle-flame, burners, and lighters.

Increase your preschooler's observation skills with this fun and colorful science experiment!

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Whether your child wants to be a cowboy or a princess, this homemade horse prop is perfect to use in all sorts of imaginative play!

In this project children practice the scientific method while playing with puffy paint.

Try this simple preschool arts and crafts activity: make a plaster of Paris sculpture in a plastic sandwich bag!

Construct a card castle fit for a king! Treat your royal "face" cards (the kings, queens, and jacks) to the cool castle they deserve.

Discover how and which salt melts ice the quickest.

Here is a nifty science experiment using Epsom salts to make "frost" appear on a piece of glass.

How can Hooke's law explain how springs work? Learn about how Hooke's law is at work when you exert force on a spring in this cool science project.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Here's an arts and crafts activity for your preschooler: make pendulum paintings using only a funnel, canvas, and paint!

This science fair project examines how carnivorous plants digest insects, and whether the plant can use nitrogen in the soil to compensate for lack of insects.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Look for correlation between pH values of commercial soaps and detergents and manufacturer claims about eye irritation hazards.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Tell the Purim story in a new way: By making a set of puppets out of an old deck of cards!