9th GRADE PHYSICAL SCIENCE
What is Science best known for?
The space occupied by an object
What can be used to measure volume? (liquids)
List four branches of biological science
Botany, Zoology, Ecology, Biology
Observing, studying and experimenting to find the nature of things
The application of science for practical purposes
Representation of an object or event
something that has been proven correct many times
Explains how process works
How are mathematics and science related?
Scientific theories can be expressed as mathematical formulas
Why are planning experiments important to scientific study?
so you know what to do ahead of time and you can be prepared for the day of the experiment
why are testing results important to scientific study?
To be sure your results are accurate and consistent
Three tools used by scientists?
How is a graduated cylinder used?
Tool that measures liquid volume
What does a scale/balance do?
Tool that measures the weight of an object
What does a microscope do?
Tool that is used to see tiny objects
Explain why an experiment should test only one variable at a time.
Because you want to see how the experimental results change due to only that one variable change
K H D B D C M
Kilo, Hecto, Deka, Base, Deci, Centi, Milli
Why are prefixes useful with SI units?
Kilo(1000), Hecto(100), Deka(10), Base(1), Deci(0.1 or 1/10), Centi(00.1 or 1/100),Milli(000.1 or 1/1000)
Why do scientists use SI units instead of units such as inches and gallons?
It is more precise
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