Here is a fun holiday exercise to reinforce your grade-schooler's understanding of adjectives from adverbs while she's away on winter break!

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

What IS That Thing? is a game for kids of all ages that uses scrap paper and junk from around the house! A great way to recycle, reduce, and reuse.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

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

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

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

In this science fair project, students use the streak test to tell minerals apart from each other.

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

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Getting kids to memorize their times tables can be worse than pulling teeth. Sweeten the deal with this activity that combines math and sugar.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

Create your very own scented hand sanitizer that will help your child to keep those nasty germs at bay!

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

This science fair project examines how seeds hitchhike on animals and clothing.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

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

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

This science fair project idea investigates how magnetism can defy the force of gravity.

Help your child keep track of his pledges to be more environmentally friendly with a calendar made entirely out of recycled and reused materials!

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

This project examines whether people's taste perception is influenced by what they see.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

This Halloween math activity book is a whole lot of fun.