4th Grade Physical Science Activities : Page 2

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Give your budding young observers a chance to discover simple machines at use in their own home.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

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

This science fair project idea produces sounds by creating vibrations using different objects.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Making your own glass cleaner is easy, effective and inexpensive!

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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!

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!

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

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

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

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

An home science experiment for older students that teaches about the science behind heat.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.