15/16 Science Ch. 3-4 Test Cards

Question 1

Water melts at what temperature?

Answer 1

Zero degrees Celsius.

Question 2

Water boils at what temperature?

Answer 2

100 degrees Celsius.

Question 3

What are atoms?

Answer 3

The basic building blocks of matter.

Question 4

What are some examples of a crystalline solid?

Answer 4

Salt, sugar, and snow

Question 5

What are some examples of an amorphous solid?

Answer 5

Plastics, rubber, and glass

Question 6

How many electrons can the first electron cloud hold?

Answer 6

Two

Question 7

How many electrons can the second electron cloud hold?

Answer 7

Eight

Question 8

How many electrons can the third electron cloud hold?

Answer 8

Eighteen

Question 9

How many electrons can the fourth electron cloud hold?

Answer 9

Thirty-two

Question 10

What did Dalton’s atomic model look like?

Answer 10

A plain sphere.

Question 11

What did J.J. Thomson’s model look like?

Answer 11

A sphere with a chunk out of the side, with smaller spheres on it.

Question 12

What is viscosity?

Answer 12

A liquid’s resistance to flowing.

Question 13

What happens to the viscosity of a liquid when the temperature changes?

Answer 13

When heated, it becomes less viscous. When made cold, it becomes more viscous.

Question 14

Name five of the contributors to the atomic theory.

Answer 14

1. Dalton
2. J.J. Thomson
3. Rutherford
4. Niels Bohr
5. James Chadwick

Question 15

What is the charge of a proton?

Answer 15

+1

Question 16

What is the charge of a neutron?

Answer 16

0

Question 17

What is the charge of an electron?

Answer 17

-1

Question 18

What happens to volume and pressure when temperature increases or decreases?

Answer 18

When temperature is increased, pressure increases, when decreased, pressure decreases.

Question 19

What happens to volume when temperature increases or decreases?

Answer 19

Volume decreases when temperature is decreased, and increases when temperature is increased.