Lesson 1: What is Chemistry?

Question 1

What is chemistry?

Answer 1

The study of matter and the changes that it undergoes

Question 2

What is science?

Answer 2

The use of evidence to construct testable explanations and predictions of natural phenomena, as well as, the knowledge generated through this process

Question 3

What is a hypothesis?

Answer 3

A testable explanation of a situation or phenomena

Question 4

What is a theory?

Answer 4

An explanation of a natural phenomenon based on many observations and investigations over time

Question 5

What is a scientific law?

Answer 5

A relationship in nature that is supported by many experiments

Question 6

What is pure research?

Answer 6

Gaining knowledge for the sake of knowing stuff

Question 7

What is applied research?

Answer 7

Research to solve a specific problem

Question 8

What is a substance (a.k.a. a chemical)?

Answer 8

Matter that has a definite and uniform composition

Question 9

What is mass?

Answer 9

A measurement that reflects the amount of matter

Question 10

What is weight?

Answer 10

A measure not only of the amount of matter but also of the effect of Earth’s gravitational pull on that matter

Question 11

What is a model?

Answer 11

A visual, verbal, or mathematical explanation of experimental data