Scientific Theory

Which of these can change when new evidence is presented?

• theory

• law

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NGSS.HS-LS4-2

Which of these explain how a natural phenomenon works or happens?

• theory

• law

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NGSS.HS-LS4-2

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Which of these describes a natural phenomenon or relationship that always occurs under specific conditions

• theory

• law

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NGSS.HS-PS2-1

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Which of these can be represented mathematically and provide no explanation why a phenomenon occurs?

• theory

• law

Scientific theories can be tested.

• True
• False

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NGSS.HS-PS2-1

What is a theory?

• Describes what happens
• Explains a process

What is a law?

• Describes what happens
• Explains a process

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.HS-PS2-1

Scientific theories do not change once they have been written down.

• True
• False

A scientific ____________ is a statement that describes what always happens under certain conditions in nature.

• law
• theory
• method
• variable

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NGSS.HS-PS2-1

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