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What must a valid scientific conclusion be based on?
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How many variable should be tested at one time during a scientific investigation?
ONE
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What is another word for HYPOTHESIS?
prediction
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In order to stay safe when performing science activities what should you do?
1. Ask your teacher questions
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Would a scientist using scientific methods form an opinion?
No, because opinions are different from other people's perspectives.
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What can you draw a conclusion from or make a prediction from?
- DATA
- observations, evidence
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What is a scientific conclusion based on?
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What must a scientific investigation (experiment) be able to be?
REPLICATED
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Before you perform a scientific investigation, what are appropriate materials to reference before beginning the investigation?
- information scientists agreed upon OR
- reviewed and verified materials by other scientists
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What are examples of appropriate reference materials?
- scientific journals
- books
- articles written by other scientists
- "reliable" internet websites
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Why should scientists base their investigations on observations and data instead of opinions?
Opinions are based on beliefs and can change from person to person, observations and data are the same no matter who performs the investigation.
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What does observation mean?
something you find out about objects, events, or living things using your senses
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Hypothesis means
statement of what you think will happen during an investigation
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Experiment
the use of scientific methods to test a hypothesis
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Procedures
step by step instructions for completing a task
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What does INFERENCE mean?
a conclusion based on observations
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Evidence means
observations that make you believe something is true
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What does ACCURACY mean?
the ability to make a measurement that is as close to the actual value as possible
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What does VARIABLE mean
something that can change in a test
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What does PRECISION mean
the ability to consistently repeat a measurement
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What is DATA?
information from which a conclusion can be drawn or a prediction can be made
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What is a Control Group?
a standard against which change is measured
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