What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

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.

Do this activity to help your kids see how seeds contain "baby" versions of big plant stems, roots, and leaves.

Teach your child the meaning of recycle and reuse by repurposing plastic spoons as plant markers for your vegetable garden.

The objective of this science project is to determine the length of time for different seeds to germinate.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

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.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

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

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

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

This project determines what category of person is most likely to be ticklish.

Is that seed alive or not? Here's an exciting way for kindergarteners to make a seed museum that your child can watch, using simple household materials.

In this activity, your child will be challenged to make a tower using paper cups.

Help your child create a written message and practice their letters using sticks they find in nature. Here's how to get started.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

This science fair project idea determines which method of hand cleansing is the most effective.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Using a toy race car kids create a visual model of the Doppler Effect.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

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.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

Show your preschooler how to make a print of a butterfly using her hand as a tool--a great way to stimulate her sense of touch.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.