PAT PAT Science Reasoning 2

Question 1

Which of the following best describes a scientific theory?

Accepted Answer

A well-tested explanation supported by extensive evidence

Answer

A scientific theory is a well-substantiated explanation based on repeated testing and a body of evidence.

Question 2

A student measures a liquid using a graduated cylinder and records 45 mL. What tool did she use?

Accepted Answer

A graduated cylinder

Answer

A graduated cylinder is used to measure the volume of liquids in milliliters.

Question 3

In the water cycle, what process turns liquid water into water vapor?

Accepted Answer

Evaporation

Answer

Evaporation is the process by which liquid water is converted into water vapor through heat energy.

Question 4

Which of the following is a physical change?

Accepted Answer

Cutting paper

Answer

Cutting paper changes only the shape or size, not the chemical composition, making it a physical change.

Question 5

A food web shows arrows from grass → rabbit → fox. What do the arrows represent?

Accepted Answer

The flow of energy from one organism to another

Answer

In a food web, arrows show the transfer of energy from the organism being eaten to the organism eating it.

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