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Physical Science
9 weeks exam
| Question | Answer |
|---|---|
| scientists test a hypothesis by | doing experiments |
| a scientific model is a | representation of a real event or object |
| Technology can be defined as | applied science |
| Which of the following is not a branch of biology? | geology |
| Scientific theories can be changed or replaced when | new discoveries are made |
| the main branches of natural science are | life, physical, and earth science |
| Pure Science is defined as the | continuing search for new knowledge |
| the two main branches of science are | natural and social science |
| What does it mean to say that "no experiment is a failure?" | All experiments are observations of real events |
| which instrument has been used to detect the oldest, most distant objects in the solar system? | radio telescope |
| Which question cannot be answered by an experiment? | Did a comet impact kill the dinosaurs? |
| Which SI prefix means one-hundredth (1/100)? | centi- |
| A loaf of bread weighs 1362g. the weight in kilograms is | 1.362kg. |
| The force which gravity pulls on a quantity of matter is referred to as | weight |
| A precise measurement is one that | is as exact as possible |
| Matter is defined as anything that | has mass and takes up space |
| You put 1 gram of salt into 1 liter of water and stir. The resulting liquid is an example of | a homogeneous mixture |
| A material that can be represented by a chemical formula is | pure substance |
| What is an example of a gas-liquid mixture? | a carbonated drink |
| A liquid changes rapidly into a gas at the liquid's | boiling point |
Created by:
Becca101
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