2

Question 1

The Fahrenheit scale,

Answer 1

commonly used in the United States, is defined so water freezes at 32°F and boils at 212°F

Question 2

Celsius scale, which places the freezing point of water at 0°C and the boiling point at 100°C.

Answer 2

which places the freezing point of water at 0°C and the boiling point at 100°C.

Question 3

Energy

Answer 3

is what makes matter move or heat up. International metric unit is the joule.

Question 4

Power

Answer 4

is the rate at which energy is used. International metric unit is the watt.

Question 5

Density

Answer 5

Density describes compactness or crowding.

Question 6

Concentration

Answer 6

describes the amount of one substance mixed with another.

Question 7

List three common units of energy.

Answer 7

Kilowatt-hour; used to measure electrical energy for utility bills.
​
Calorie; used to measure the energy the human body can draw from food.
​
Joule; the international metric unit for energy.