Science Test 2/2

Question 1

What’s the difference between Fahrenheit and Celsius?

Answer 1

They have different freezing points and boiling points of water. Fahrenheit’s boiling point is 212* and it’s freezing point is 32. Celsius boiling point is 100 while it’s freezing point is 0*.

Question 2

How does temperature affect the motion of particles?

Answer 2

When something is hot, the space between particles get bigger. When it’s cold, particles move close together.

Question 3

Correctly draw the particles in a solid

Answer 3

“°°°°°°”
°°°°°°
(close together)

Question 4

Describe a solid by volume + shape

Answer 4

A solid is matter with a fixed shape and volume.

Question 5

Correctly draw the particles in a liquid

Answer 5

° ↘️° ° °
° ⬆️° °
°↗️ ° ↙️°

(spread out)

Question 6

Describe a liquid by volume + shape

Answer 6

A liquid is matter with a fixed volume, but not a fixed shape.

Question 7

Correctly draw the particles in a gas.

Answer 7

°↘️         °⬇️
       °↙️    
   °➡️       °⬆️
      ↗️°
(very spread out)

Question 8

Describe a gas by volume + shape.

Answer 8

A gas is matter without a fixed shape or volume.

Question 9

How do particles change when a solid turns into a liquid?

Answer 9

Heat goes into the solid, making the particles move faster. They closely slide past each other.

Question 10

How do particles change when a liquid turns into a gas?

Answer 10

Heat goes into the liquid making particles move faster.

Question 11

Compare elements, compounds, and mixtures

Answer 11

• substances in mixtures remain the same, while compounds are new substances formed by bonded atoms
• mixtures can be separated by physical means, while compounds can be separated only by breaking the bonds between atoms
• the proportions of different substances in a mixture vary, while in compounds they are fixed

Question 12

Compare compounds, mixtures, and elements

Answer 12

•mixtures can be separated by physical means, while compounds can be separated only by breaking the bonds between atoms