Science SPED 9 - Quarter two-Week six.pptx

SNED SCIENCE

1. REVIEW What is your body made of?

2. At the most basic level, your body—and, in fact, all of life, as well as the nonliving world—is made up of atoms, often organized into larger structures called molecules.

3. All matter is made up of substances called ELEMENTS, which have specific chemical and physical properties and cannot be broken down into other substances through ordinary chemical reactions.

4. REVIEW

5. REVIEW CARBON 6 th most abundant element in the universe, has been known since the ancient times Most commonly obtained from coal deposits , although it usually must be processed into a form suitable for commercial use. 3 naturally occurring allotropes of carbon are known to exist: amorphous, graphite and diamond

6. CARBON AMORPHOUS Formed when material containing carbon is burned without oxygen for it to burn completely. It is known as lampblack, gas black, channel black or carbon black, it is used to make inks, paints, and rubber products. It can also be pressed into shapes and is used to form the cores of most dry cell batteries, among other things.

7. CARBON GRAPHITE One of the softest materials known, a form of carbon that is primarily used as a lubricant. Produced by treating petroleum coke, a black tar residue remaining after the refinement of crude oil, in an oxygen-free oven. Commonly called lead, the black material used in pencils is graphite.

8. CARBON DIAMOND Naturally occurring form of carbon, one of the hardest substances known . Typically used for jewelry – most commercial quality diamonds are artificially produced.

9. Q3 – Week 6 Organic Compounds

10. The term organic describes chemical compounds that contain carbon and other elements such as hydrogen, oxygen, nitrogen, sulfur, or phosphorus. Sugar – C 6 H 12 O 6 All living organisms pictured are alive and composed of organic compounds.

11. Most organic compounds contain carbon, hydrogen and sometimes other elements such as nitrogen, sulfur, oxygen, or phosphorus. All living organisms contain carbon – even bacteria. Our body is mostly composed of water, H 2 O, and water is important for us to survive. However, water is an example of an inorganic compound because it doesn’t contain carbon and it was not formed by a living organism. (also CO 2 )