Warm-Up8/31/12 Chapter 1, problem #68. A student is planning a science fair

project called, “Does Temperature Affect How High a Basketball Can Bounce?” Based on the title, what are the

manipulated and responding variables? Name at least 2 factors that would need to

be kept constant during the experiment?

1.1 Chemistry

Chemistry – study of matter and its changes.

Matter – anything with mass and volume.

Every THING is made of matter, so chemistry affects all aspects of life and most natural events.

Areas of Chemistry

5 (five) traditional areas of chemistry: Organic Chemistry Inorganic Chemistry Biochemistry Analytical Chemistry Physical Chemistry

Pure vs. Applied Chemistry Pure Chemistry – the pursuit of

knowledge for its own sake. Applied Chemistry – research directed

towards a practical goal or application.

Pure research can lead directly to an application.

An application can exist before research is done to explain how it works.

1.2 Chemistry Far & Wide

Macroscopic – the world of objects large enough to be seen with the naked eye.

Microscopic – the world of objects that can be seen only under magnification.

1.3 Alchemy

Early chemistry (8th century) Arose independently around the world Practical side: Developed tools &

techniques for working with chemicals. Beakers, tongs, funnels, mortar & pestle Separate mixtures, purify chemicals

Mystical side: Sought “perfection” Gold = “perfect metal”; tried changing lead into

gold and failed

Failed to provide logical explanations for changes in matter