Showing Results for how when : Page 4

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

Kids are sure to be entranced by the magic of the ocean when they create their very own ocean in a bottle.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

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

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

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

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Discover how and which salt melts ice the quickest.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.