Showing Results for hard

This science fair project idea focuses on the use a conductivity device to determine the ionic concentrations of hard water.

What happens when light hits a hard surface? Find out by conducting a simple light reflection experiment with your preschooler.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

This kindergarten science activity will help her explore the changing states of matter which transform an egg from raw to soft to hard-boiled.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

The fish most kids see is usually filleted, and it's hard to see how it came from a lake or sea. This cool gyotaku activity blends life science with art!

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

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!

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

This experiment evaluates if a noisy environment makes it harder for test subjects to perform tasks that require hand-eye coordination.

This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.

Before your treat your child (and yourself!) to a yummy snack, help her learn a little about Sir Isaac Newton's First Law of Motion!

Satisfy your kindergartener's fascination of different sounds with this easy science project, where they'll use their ears instead of their eyes to identify sounds!

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

Science fair project that explores the natural process of limestone formation.

With this activity, not only will you be experimenting with giving accurate information, you'll also teach your child how to write good scientific procedures.

This tactile activity helps kindergarteners learn about texture.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

How fast is the wind blowing? This science experiment provides step-by-step instructions to help you answer this question.

This project involves the development of a website using free software online to promote the value of science.

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

Research basic components of vacuum cleaners, consult vacuum cleaner manufacturers for advice. Design vacuum with attachments that change automatically.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Instead of the traditional egg hunt, try this creative variation that will result in a beautiful Easter garden.

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

2011 VIRTUAL SCIENCE FAIR ENTRY: The objective of this science fair project is to develop a microcontroller and circuit that can conduct electricity.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.