3rd and 4th Grade Physical Science Activities : Page 2

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

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

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

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

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

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

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

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.

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

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

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

Try this chemistry experiment with your curious kid and get some "shocking" results!

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

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!

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

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?

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

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

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.

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

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

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

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!

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

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

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

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

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.

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