[pic] [pic] ALICE ASHNA 5S JASPER WILLIAMS HIGH SCHOOL 2012 TOPIC 1: SCIENCE AND THE TOOLS OF chemistry 1. Science- is a management of thinking that helps us to understand the piece. 2. Chemistry- is a branch of lore that is interested in what social make are made of and how they change. 3. Bio chemical substance science - is the study of chemical substance changes inside cells. 4. Organic chemistry studies the changes involving the element carbon. 5. inorganic chemistry studies things that are not made of carbon (e.g. calculating machine separate and superconductors. 6. Scientists believe that matter behaves according to natural law. 7. predominate happens when the woolgather moves through the earths overshadow. The earth blocks the insolates light and the moon closely becomes dark. After about an hour the moon moves out of the earths shadow and it becomes light again. 8. scientific method is a way if encyclopae dism about the world and making sure what we learn is correct. ( e.g. chemistry practicals) 9. Experiment is a way if testing our hypothesis to verify if it is true. 10. Variable is the thing that is changed in an experiment. It is wise to use only(prenominal) one variable 11. inhibit experiment- an experiment in which we do not change the variable. 12. qualitative observation are description(e.g. the colourize changed from yellow to red , bubbles were produced etc) 13. denary observation are select measurement (e.g. the rate was in two ways as fast, 25.5ml of gas was produced etc) 14. Significant figures are figures that we have measured. The much SI a measurement has, the more precise it is.
| amount |SI |EXPLANATION | |1259 |4 |Natural numbers are substantial | |1200 |2 |The underlined zeros are not significant...If you want to work over a full essay, order it on our website:
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