In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

Celebrate autumn with a seasonal bash. Welcome the fall with a festive party for your little one and her friends, full of crafts, snacks and fun games.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Examine the effect of pressure on carbonation in soda.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Create a self-portrait from natural materials in this collage craft activity!

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

This science fair project idea explores how length affects the weight a bridge can hold.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

This science fair project idea experiments with spinning color wheels and optical illusions.

In this design challenge, your child will make a bottle rocket using typical household items.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

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

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

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

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