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

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

You don't need to head to the Arctic to experiment with life in an igloo. Learners can build their own ice igloo at home from water and empty milk containers.

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

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This activity is a fun way for your first grader to learn about how veggies help your body while being creative with art and drama. Here's how to get started.

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

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

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

This winter garden project is just about bomb-proof, and believe it or not, it might even make a great gift. So get craft happy with your first grader!

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

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

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

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

Engineers in training can get started with this simple wheel-and-axle construction activity.

After completing this fun science project, your child will have a better understanding of plants, and they may even develop a green thumb in the process!

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Learn how different types of soil affect how animal tracks form in this experiment!

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

Help your kindergarten scientist explore an important part of earth science: how soil retains water.

This classic children's game demonstrates how sound travels through air vs. through a solid.

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 science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.