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Pennington Science
Pennington 1st nine weeks exam
| Question | answer |
|---|---|
| to test or verify (a scientific experiment) by a parallel experiment or other standard of comparison | Control |
| something that does not or cannot change or vary | Constant |
| early chemists | alchemist |
| a variable in a functional relation whose value determines the value or values of other variables | independent variable |
| anything that has mass and takes up space. | matter |
| the event studied and expected to change when the independent variable is changes | dependent variable |
| smallest particle of an element that still has the properties of that element | atom |
| a remark, comment, or statement based on what one has noticed or observed. | observation |
| a mere assumption or guess | hypothesis |
| contains only one kind of atom and cannot be broken down into simpler substance | element |
| the process of arriving at some conclusion that, though it is not logically derivable from the assumed premises | inference |
| capable of being varied or changed | variable |
| process of questioning, researching, and experiment. | scientific inquiry |
| to signal to or direct by waving | wafting |
| particles in the nucleus with a positive charge. P+ | proton |
| the ignition of a substance or body from the rapid oxidation | spontanious combustion |
| particles in the nucleus with no charge. | nuetrons |
| act or fact of igniting; state of being ignited | ignition |
| particles which circle the nucleus with a negative electrical charge.E | electron |
| a substance that dissolves another to form a solution | solvent |
| a dissolved substance | solute |
| the number of protons in the nucleus: this number also equals the number of electrons | atomic number |
| the letters in the acronym MDSS stand for | Material data safety sheet |
| 3 things needed for fire | source, fuel, air |
| the number of protons and neutrons in the nucleus added together electrons don't count in the mass | atomic mass |
| properventalation protect your what | lungs |
| Charring or absense of skin, accomidating by no pain are characteristic of what kind of burns | 3rd degree |
| Reddness and minor irritation and some heat are characteristics of what degree burns? | 1st degree |
| Blistering, weeping skin, and much pain are characteristics of what kind of burns? | 2nd degree |
| What should you do before starting a lab? | read instructions |
| If you are on fire what should you do? | stop drop and roll |
| the study of matter and how atoms join together to make different things | Chemisrty |
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