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Physical Science Q2
Question | Answer |
---|---|
The study of how atoms, molecules, and chemicals interact with each other. | Chemistry |
The study of nonliving things that make up the world | Physical Science |
The study of matter, energy, motion, and forces | Physics |
What are the two branches of physical Science? | Chemistry and Physics |
Name the benefits and drawbacks of chemistry. | Benefits - Developed compounds and materials useful for everyday life including plastics, pesticides and drugs Drawbacks - Air and water pollution |
Name the benefits and drawbacks of physics | Benefits - technology applications like nuclear power, space exploration, modern transportation Drawbacks - radioactive waste other environmental effects |
How many feet are in a meter? | 3.28 ft/m |
How many meters are in a foot? | 0.3048 m/ft |
How should a Christian view Science and technology? | Science is a tool to better know God and his creation Christians have a responsibility to use technology wisely |
What is a conversion factor? | Relationship of one unit to another in fraction form 1 Meter/ 3.28 feet |
How many cm in a meter? | 100 |
How many meters in a kilometer? | 1000 |
The smallest unit into which an element can be divided and still maintains its properties | Atom |
A pure substance consisting of atoms of two or more elements that are chemically combined in a fixed proportion | Compound |
A pure substance that cannot be broken down into simpler substances by physical or chemical means | Element |
Anything that has mass and takes up space | Matter |
A particle consisting of two or more atoms chemically tied together | Molecule |
Substance of constant composition that possesses definite qualities | Pure substance |
What is the purpose of classifying matter? | To help people talk about and study them in detail. |
A method of separating mixtures according to how different components are absorbed | Chromatography |
A method of separating a liquid mixture by heating so the liquid evaporates and condenses | Distillation |
The use of paper or other materials remove solid particles from a liquid mixture | Ffiltration |
A combination of substances in which the particles are not uniformly distributed | Heterogenous mixture |
A combination of substances in which the property and appearance are the same throughout | Homogenous mixture |
A combination of two or more substances that are not chemically combined | Mixture |
What are the two types of heterogeneous mixtures | Colloids and suspensions |
A mixture in which the particles of a substance are mixed throughout but are large enough to settle | Suspension |
What is the Tyndall effect | The scattering of light by colloids |
Can be used to spin mixtures that a very high rate and separate the components according to their densities | Centrifuge |