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compounds & mixtures

Compounds and Mixtures
Image: iStockphoto.com/glhalverson

Compounds and Mixtures

Did you know you can extract iron from breakfast cereal? Cereals are only mixtures. But when two or more elements are bonded together in a molecule, you get a compound, and only a chemical reaction will pry them apart.

Investigate compounds and mixtures and the stuff that goes with them (like chemical formulas) — and discover how you could extract that iron from your cereal.

BBC
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Innovation in the Mix

Innovation in the Mix

Mixing the filler used to repair car dents and dings was a big headache until engineers borrowed mixing technology from dentistry. More...

Article
3M
Mixtures (Heterogeneous and Homogeneous)

Mixtures (Heterogeneous and Homogeneous)

How is a bar of steel like a cup of coffee? Learn the difference between heterogeneous and homogeneous mixtures, and you will know. More...

Article
Everything Science
Naming Ionic and Molecular Compounds Game

Naming Ionic and Molecular Compounds Game

Identify the compounds in this game all the way up to the (virtual) million-dollar question. You may find yourself wanting to play again. Don't say we didn't warn you! More...

Game
Quia.com
What Happens When Stuff Dissolves?

What Happens When Stuff Dissolves?

Table salt and white sugar look very similar and disappear in water. But because one is an ionic compound and one is a molecular compound, they dissolve in very different ways. More...

Video
Tyler DeWitt
Compound Basics

Compound Basics

Click this link for an introduction to chemical compounds and bonds. Then, move on to the next page to find out how compounds are named. More...

Article
Chem4Kids.com
Compounds and Mixtures: A Breakdown

Compounds and Mixtures: A Breakdown

If you're facing a test on compounds and mixtures, this site should help you nail down the basics. More...

Article
BBC
Get the Iron Out of Your Breakfast Cereal

Get the Iron Out of Your Breakfast Cereal

Many breakfast cereals contain iron. So are they compounds or mixtures? And is the iron really, well, iron, as in a barbell? See for yourself with this activity. More...

Activity
Scientific American
Ionic vs. Molecular

Ionic vs. Molecular

Some compounds have ionic bonds. Some have molecular, or covalent, bonds. And different bonds make for very different compounds, as this video explains. More...

Video
Tyler DeWitt
Mixtures

Mixtures

Why does an odor spread through the air until it fills a room? Find out interesting and important details about mixtures here. More...

Article
FactMonster.com
Quiz: Mixtures

Quiz: Mixtures

Could you create a mixture that consists of nothing but carbon atoms? Some of the answers to this quiz may surprise you. More...

Interactive
Chem4Kids.com
Spin Zone: Separating Butter with a Salad Spinner Centrifuge

Spin Zone: Separating Butter with a Salad Spinner Centrifuge

A centrifuge separates the different ingredients in mixtures by spinning them. Build a centrifuge out of a salad spinner and test it out with some butter. More...

Activity
Science Buddies
Writing Ionic Formulas: Introduction

Writing Ionic Formulas: Introduction

With the help of the periodic table of the elements, you can write out the formula for any ionic compound. More...

Video
Tyler DeWitt

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