Kindergarten - 4th Grade Physical Science Activities : Page 3

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

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

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

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.

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

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

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

This surprisingly good glue recipe comes from common kitchen items.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

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.

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

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!

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

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.

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

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

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

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

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

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?