Showing Results for how when : Page 4

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?

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

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.

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

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.

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.

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

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

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

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.

Will the shape of an ice cube impact how fast the ice melts?

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

How powerful is the reaction between baking soda and vinegar? Find out here!

This science fair project idea investigates how color affects temperature.

How do organic materials become soil? This science experiment measures what materials biodegrade.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This science fair project idea explores how length affects the weight a bridge can hold.

Explore if planting seeds in a certain direction will affect how fast it germinates.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

In this fun experiment, we'll find out how color affects heat absorption!