Nature of Science Review

 An organized procedure to study something under controlled conditions is called:

• theory
• experiment 
• observation
• hypothesis

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NGSS.MS-PS1-2

 A testable idea or explanation that leads to scientific investigation based on prior knowledge is known as: 

• theory
• experiment 
• observation
• hypothesis

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NGSS.MS-PS2-2

What is a testable question that can be answered by an experiment?

• How many animal species live in Australia?

• Why are birds' bones hollow?

• What type of chewing gum stretches the farthest?

• How fast does the Earth rotate around the sun?

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NGSS.MS-PS2-2

What does science include?

• Asking questions and searching for answers.

• Asking questions and guess the answers.

• Do experiments without asking questions.

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NGSS.MS-PS2-2

Why do scientists do investigations?

• To get a prize

• To find answers to their questions

• To become the best scientists

Scientists often use visual or mathematical representations to investigate items that are very large, very small, or otherwise difficult to study.  What are these visual or mathematical representations called?

• experiments
• hypotheses
• models
• observations

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NGSS.MS-LS2-3

NGSS.MS-PS1-1

Models can be helpful in scientific investigations because

• it may not be possible to work with the real thing.

• they can be smaller and more manageable than the real thing.

• they can be safer to work with than the real thing.

• all of the above

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NGSS.MS-PS1-1

These describe a natural phenomenon or relationship that always occurs under specific conditions

• theory

• law

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NGSS.MS-PS1-5

These can often be represented mathematically and provide no explanation why a phenomenon occurs

• theory

• law

Scientific theories are based on

• general assumptions of how systems work.
• mathematical principles that can be proven true.
• large amounts of data collected over time.
• observations from within only one scientific discipline.

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NGSS.MS-PS2-5