Kindergarten - 4th Grade Physical Science Activities : Page 5

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

Help your kindergarten scientist understand the concept of surface tension with this simple science experiment.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

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.

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

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

Household items and a bit of imagination will create a CSI kit for your child to have investigative adventures with. Explore the world of forensic science!

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

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

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

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!

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

This is a fun way to introduce kids to the concept of volume, and give them a quick hands-on activity to boot.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

Help your own young scientist tackle the wonders of static electricity from the comfort of his own home!

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.