Showing Results for how when : Page 4

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

Plants and light seem to be good buddies, but how far does the friendship really go?

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

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

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.