Matter

Which correctly lists the types of matter, in terms of their atoms, in order from least tightly packed to most tightly packed?

• solid, gas, liquid

• solid, liquid, gas

• gas, solid, liquid

• gas, liquid, solid

Tags

NGSS.MS-PS1-1

Which statement best describes the atoms in a solid?

• They are held together by strong attractions.

• They slide past each other.

• They are located far apart.

• They spread to fill available space.

Which statement best describes the atoms in a gas?

• They vibrate in place.

• They stay in a fixed position.

• They are closely packed.

• They move freely in all directions.

Mercury’s natural state is where the atoms are close to each other but are still free to pass by each other. In which state(s) could mercury naturally exist?

• gas

• liquid

• solid or liquid

• solid or gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Density involves the amount of a material in a certain volume. When a material changes phases, it changes in density in a predictable way as the amount of material stays the same but the molecules get farther apart or closer together. Water has solid and liquid states that do not follow these predictions of density in the phases of matter.

What does that mean about the densities of the phases of water?

• The solid state is the most dense, followed by the liquid state, then the gas state.

• The solid state is more dense than the liquid state.

• The liquid state is more dense than the solid state.

• The gas state is the most dense, followed by the liquid state, then the solid state.

Tags

NGSS.MS-PS1-4

Which statement best describes the atoms of the gas neon?

• They slide past each other.

• They move freely in all directions.

• They vibrate in place.

• They are packed closely together.

Density describes how much mass is contained in a certain volume. Knowing how far apart molecules are in each state, which best ranks solids, liquids, and gasses from least dense to most dense?

• Gasses are denser than liquids.

• Liquids are denser than solids.

• Gasses are less dense than solids.

• Solids are less dense than liquids.

Gold’s natural state has a definite shape and a definite volume. What is gold’s natural state(s)?

• solid

• liquid

• solid or gas

• liquid or gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Rahul sees a flock of birds. He watches as the flying birds land in neat little rows on several power lines. Which change of state does the motion of the birds most closely model?

• melting

• vaporization

• deposition

• sublimation

Which is the process by which a gas changes to a solid?

• deposition

• evaporation

• freezing

• sublimation

Tags

NGSS.MS-PS1-4