Hypotheses, Theories, and Laws Answers

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[___] are not replaced.

A
Hypotheses
B
Theories
C
Laws
4

[___] must be testable.

A
Hypotheses
B
Theories
C
Laws
6

Choose the statements that accurately describe a good hypothesis.A good hypothesis is based on one’s personal opinion.A good hypothesis can be tested.A good hypothesis leads to a test with measureable results.A good hypothesis is not always based on prior knowledge or research.A good hypothesis answers or explains a scientific question.

A
A good hypothesis is based on one’s personal opinion.
B
A good hypothesis can be tested.
C
A good hypothesis leads to a test with measureable results.
D
A good hypothesis is not always based on prior knowledge or research.
E
A good hypothesis answers or explains a scientific question.
7

Which statements apply to laws? Check all that apply.A law is a factual statement.A law is testable.A law is a possible answer to a scientific question.A law is an explanation.A law cannot be changed or replaced.

A
A law is a factual statement.
B
A law is testable.
C
A law is a possible answer to a scientific question.
D
A law is an explanation.
E
A law cannot be changed or replaced.
8

Which statements apply to theories? Check all that apply.A theory is a factual statement.A theory is well-tested and widely accepted.A theory is an explanation.A theory cannot be revised or replaced.A theory can help predict future events.

A
A theory is a factual statement.
B
A theory is well-tested and widely accepted.
C
A theory is an explanation.
D
A theory cannot be revised or replaced.
E
A theory can help predict future events.
9

The law of superposition states that in horizontal rock layers, the oldest layers are at the bottom. Which statements explain why this is a law and not a theory? Check all that apply.It has changed as technology advanced.It describes the order of rock layers.It is a statement of fact.It has been revised over time.It explains how rock layers form.

A
It has changed as technology advanced.
B
It describes the order of rock layers.
C
It is a statement of fact.
D
It has been revised over time.
E
It explains how rock layers form.
10

What happens when an experiment with new information or new technology produces results that support an existing theory?

A
The theory is considered proven.
B
The theory is revised or updated.
C
The theory becomes a law.
D
The evidence is ignored and thrown away.
11

Which is an example of a scientific hypothesis?

A
How will climate change affect forests and plants on dry land?
B
In horizontal rock layers, the oldest layer is at the bottom.
C
The outer layer of Earth is divided into “plates” that move across Earth’s surface.
D
If salt is added to water, then the water will take longer to freeze because the salt causes more heat in the mixture.

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