In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

In the mood for a bit of silly science? Help your child create a truly one-of-a-kind planter out of a potato head!

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

The fish most kids see is usually filleted, and it's hard to see how it came from a lake or sea. This cool gyotaku activity blends life science with art!

This science fair project idea examines the reason boats are shaped and engineered.

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

Explore if planting seeds in a certain direction will affect how fast it germinates.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

Kids conduct a simple science experiment to see if seeds can grow without soil in this simple kindergarten science activity.

Construct and experiment with a periscope using reflected light rays to gather an image.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

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

Create your very own scented hand sanitizer that will help your child to keep those nasty germs at bay!

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!

In this art project, budding entomologists will create a larger than life, moveable puppet version of a praying mantis.

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

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

In this project students experiment with making music using only glasses of water.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

Discover whether a metal will expand under hot water.

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Let your young adventurer go bug hunting in the great outdoors with their very own bug net!

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

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

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

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.