In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

Forget store-bought dyes this Easter: color your Easter eggs with natural dyes made with ingredients from your own kitchen in this 1st grade activity.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Planning a beach vacation? Here's a cool nature craft you can make in the sand with your child.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

Bring the magic and mystery of the night sky to the light of day with this fun constellation art project!

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

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project teaches students about wilting and browning of salad greens.

Learn all about balance and motion as your child designs a corn maze!

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

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

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Blanket forts are a kid classic! Let your child create a âfortress of solitudeâ on his own for reading, telling scary stories or for cozy cocooning.

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.

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

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!