Chapter 1

Question 0

What are the building blocks of all matter?

Answer 0

Atoms

Question 1

How are science and technology related?

Answer 1

Advances in science may lead to advances in technology and vice versa.

Question 2

What’s happens when the data in an investigation do not support the original hypothesis?

Answer 2

The hypothesis will be revised.

Question 3

Which of the following statements is true about scientific theories?

Answer 3

Scientific theories are never proven.

Question 4

Why are scientific models important?

Answer 4

They help visualize things that are very complex.

Question 5

Which of the following is an example of a safe laboratory procedure?

Answer 5

A clock that measures time to the nearest tenth of a second.

Question 6

How do scientists who speak different languages make their data understandable to one another?

Answer 6

The all use SI

Question 7

What is a system of knowledge and the methods used to find that knowledge?

Answer 7

Measurement

Question 8

Which of the following is NOT a branch of natural science?

Answer 8

Social science

Question 9

In which step of the scientific method is information obtained through the senses?

Answer 9

Making observation

Question 10

What is a physical or mental representation of an object or an event?

Answer 10

A model

Question 11

What is the most important safety rule?

Answer 11

Always follow your teacher’s instruction

Question 12

Write 0.00025 in scientific notation.

Answer 12

2.5 x 10 to the -4

Question 13

How do scientists communicate the results of investigations?

Answer 13

All of the above

Question 14

7.2 x 10 to the 4 is?

Answer 14

72000m

Question 15

560ft in scientific notation?

Answer 15

5.6 x 10 to the 2 ft

Question 16

3.4 x 10 to the 3, times, 2.2 x 10 to the 5 is?

Answer 16

7.48 x 10 to the 8

Question 17

9.2 x 10 to the 9, divided by, 2.3 x 10 to the 4?

Answer 17

4 x 10 to the 5

Question 18

8.4 x 10 to the -7, divided by, 4.2 x 10 to the -2?

Answer 18

2 x 10 to the -5