This science fair project idea demonstrates that plants give off water.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Make a spring collage with your child to get them outside and those creative juices flowing!

Help your child make a beautiful homemade sandcastle that will last!

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.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This fun activity makes use of pasta shells, paint, and glue make a crab while your child learns about this unique creature.

Challenge your young dinosaur lover to examine dinosaur footprints and then create their own dinosaur fossil in this hands-on activity.

People have favorite flavors, but what about ants? Which ant food is the most popular?

Blend art and science in this hands-on activity that shows your kindergartener how primary colors combine to make secondary colors.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Encourage your kindergartener to investigate and chronicle the weather she observes during the coldest months of the year.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

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

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

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

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.

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

Plant a mini herb garden and teach your child about science and nature.

The weather is a key kindergarten science concept. With this activity your child will learn about wind direction and create a self portrait, too!

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Put those fall leaves to use with this fun art activity. Kids paint and print leaves, to make a beautiful tablecloth, perfect for your next fall celebration.

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

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

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

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.