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26 Cards in this Set

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  • Back
Science
knowledge about the natural worls based on obersvations and experiment
Obersvations
infomation gathered through our senses
Inference
conclusion that tries to explain obersvations
Scientific Method
way of thinking about nature that involves that use of certain skills to solve problems in an orderly manner
Steps of Method
1. Define problem
2. Obersvations
3. Hypothesis
4. Experiment
5. Obersvations
6. Analysis
7. Draw conclusions
8. Communicate the results
Hypothesis
an explaination for a problem that can be tested; can't be proven; supported or refuted
Prediction
an edcucated guess about the outcome of a test
Controlled variables
constants
Experimental variables
independent or manipulated; plotted on Y axis
Dependent variables
responding; plotted on X axis
Analysis
consider the data compared to the hypothesis
Scientific theory
explaination of hypothesis proved wiht MANY experiments
Scientific law
describes what happens in nature without explaining it
Technology
applying science to solve practical problems
SI of length
meter
A meter is ______ than a yard
bigger
SI of mass
kilogram
A kilogram is _______ than a pound
bigger
SI of volume
liter or cm cubed
A liter is ______ than a quart
bigger
SI of temperature
kelvin
Human body temperature
22 degrees celcius
Mega
million; 10 to the 6th
Giga
billion; 10 to the 9th
Micro
millionth; 10 to the -6th
Nano
billionth; 10 to the -9th