Question 1

Chemistry is best defined as the study of matter, including its __________, __________, and the __________ it undergoes.

Accepted Answer

composition, properties, changes

Question 2

Which of the following is the best example of matter?

Accepted Answer

A glass of water

Question 3

Which scientific discipline would most likely study the physics of rocks and the earth?

Accepted Answer

Geology

Question 4

A scientist observes a new phenomenon and wonders how it happens. What is the next step in the scientific method?

Accepted Answer

Hypothesize

Question 5

Which of the following statements represents a hypothesis?

Accepted Answer

If I drink coffee early in the morning, I will be able to sleep at night.

Question 6

Which of the following statements represents an observation?

Accepted Answer

During an assessment in the doctor’s office, the nurse records that the patient’s resting pulse is 32 beats per minute.

Question 7

Which component of the scientific method is best described by the statement: “Gravity is the reason that an object that is initially tossed into the air comes back down towards the ground.”?

Accepted Answer

Theory

Question 8

Which of the following shows the best order of steps in the scientific method?

Accepted Answer

Observation → Hypothesis → Experiment → Data Analysis → Conclusion → Peer Review & Publish.

Question 9

A patient has high blood pressure. A scientist wants to test if lowering sodium intake will reduce blood pressure. Which step of the scientific method is this?

Accepted Answer

Formulating a hypothesis

Question 10

Which of the following best describes a scientific law?

Accepted Answer

A testable phenomenon that the scientific community has found to be provably true.

Question 11

Which of the following is a quantitative observation?

Accepted Answer

The patient’s body temperature is over 38ºC.

Question 12

Which of the following is NOT a step in the scientific method?

Accepted Answer

Guessing the outcome

Question 13

Which of the following best describes a theory in science?

Accepted Answer

A testable and broad hypothesis of many observations, supported by a large body of evidence.

Question 14

Which of the following is an example of applying chemistry in a real-world health scenario?

Accepted Answer

Designing a diet that is low in sodium to lower blood pressure.

Question 15

Which of the following is a correct statement about hypotheses and theories?

Accepted Answer

They can never be proven correct, but they can be disproven.

Ch.1 Chemistry: An Introduction – Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards