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Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

Help your little one figure out the differences between the worlds of air, land and water, a huge step in understanding how our environment works.

In almost every preschool classroom is a sensory table. Learn how to make one at home!

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

In the mood for a bit of silly science? Help your child create a truly one-of-a-kind planter out of a potato head!

Set up a fun guessing game for your curious kindergartener, one that will test her ability to use all five of her senses.

Take a nature walk in your backyard or local park to find one object for every letter of the alphabet. Then put them together in this handy nature book.

Recycling may be a confusing concept for your little one, so take the time to teach them the magic of compost - right in your own backyard!

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Try this simple activity with your middle schooler to help him develop an understanding of why scientific classification systems exist and how they work.

Develop your child's green thumb with this easy planting activity. These plants are guaranteed to grow fast and are "brown-thumb" proofed!

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

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

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

Make edible amber fossils with your second grader to explore the fascinating world of science!

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

In this hands-on activity, kids learn what it takes to foster seedlings into full-grown plants, all in a regular old soda bottle!

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

Make this easy composting dessert and then enjoy the yummy results!

You and your child can create this beautiful butterfly mobile for hanging anywhere in the home (and learn about this magical creature while you're at it).

Your child will create an adorable Christmas tree from their footprint and practice counting while decorating their tree with objects of a variety of textures.

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

Combine science with reading and art to help your first grader create an attractive holiday gift for a beloved friend or relative.

Your child can create his own texture tree, experimenting with design during the process. The result will be a beautiful addition to your holiday decorations

Using a glass fishbowl, you and your kids can create a low-humidity, open-topped terrarium perfect for easy care, drought-tolerant succulents.

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

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

If you find yourself with a pair of kids' rain boots too cute to toss and too worn to wear, try making this fun and easy planter.