AnswersPBCSD_Grade_Forgiveness_2001340_Environmental_Science_S1_2020Unit Test

Unit Test — Unit test Answers

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Which would make for a weak claim?

A
a blog cited as the source
B
a large sample size
C
clear variables and controls
D
multiple trials
22
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Which statement about the scientific method is true?

A
The scientific method involves developing and testing conclusions.
B
The scientific method is a linear approach to accumulating scientific knowledge.
C
The scientific method is used in different ways by different scientists.
D
The scientific method involves developing a question to answer a hypothesis.
23

HIV, the virus that causes AIDS, is transferred through body fluids. People once thought that HIV infections were untreatable. Now, many people live relatively long and healthy lives despite being infected with HIV. This is possible because science helped

A
develop new medicines.
B
treat inherited diseases.
C
change societal attitudes.
D
formulate new laws.
24

The chart shows four articles read by the students in a science class.SourceClaimThe Journal of HealthSmoking can cause adverse affects on the lungsThe Daily NewsVitamin supplements help increase food absorption.The Facebook page of a veterinarianVenison is the best type of meat for dogs to eat.Time MagazineResearchers found a rare plant that can cure cancer.

A
Smoking can cause adverse affects on the lungs.
B
Vitamin supplements help increase food absorption.
C
Venison is the best type of meat for dogs to eat.
D
Researchers found a rare plant that can cure cancer.
25

Which is the best example of a scientific discovery resulting from new technology?

A
the discovery that elements can be grouped in a table on the basis of their properties
B
the discovery of atomic structure which led to the development of an electron microscope
C
the discovery of the structure of DNA, which occurred as the result of an X-ray image of a DNA molecule
D
the discovery that plant pigments can be separated and identified by using paper and a solvent

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