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Introduction to Chemistry

Chemistry Mole

Do you wonder what chemistry is or why you would want to study it? Take a look at answers to some basic questions about chemistry.

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Chemistry Spotlight10

July 10 Science History

Learn about the history of science by reading about the significant scientific events that took place on this day in history.

Why Do Rings Turn Your Finger Green?

Have you ever had a ring turn your finger green or wondered why some people say rings turn their fingers green? The reason this happens is because of the metal content of the ring. Here's a look at what's happening.

What Are Examples of Pure Substances?

A pure substance or chemical substance is a material that is homogeneous and has constant properties throughout the sample. Here are examples of pure substances.

What Is a Variable in Science?

Variables are an important part of science projects and experiments. Here is an explanation of what a variable is and a description of the different types of variables you'll encounter in science.

Top Chemistry Projects You Can Do at Home

Want to do science but don't have your own laboratory? Don't worry if you don't have a chemistry lab.This list of science activities will allow you to do experiments and projects with common materials you can easily find around your home.

How To Grow Sugar Crystals - Make Your Own Rock Candy

These are step by step instructions for growing your own sugar crystals or rock candy.

July 9 Science History

Learn about the history of science by reading about the significant scientific events that took place on this day in history.

What Is a Control Group?

A control group in a scientific experiment is a group separated from the rest of the experiment where the independent variable being tested cannot influence the results.

What Happens If You Eat Silica Gel Beads?

Silica gel beads are found in those little packets accompanying shoes, clothing and some snacks. The containers carry dire "Do Not Eat" and "Keep Away from Children" warnings. So, what happens if you eat silica?

What Is the Lightest Metal?

You may think of metals as heavy or dense. This is true of most metals, but there are some that are lighter than water and even some that are nearly as light as air. Here's a look at the world's lightest metal.

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