Showing Results for compare with same denominators 2 : Page 5

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

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?

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Test your friends to find out if you can replicate the placebo effect's incredible results.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

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 whether the process used to dry the beans we eat for food renders them unviable.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

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

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

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

Find out whether a longer airplane will fly farther or a wider paper airplane.

In this activity, your child will be challenged to make a tower using paper cups.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.