Unit 6: MATTER Lesson 5 & 6 Review

Which type of substance is always made up of a single type of atom?

• mixture
• element
• molecule
• compound

Paula is creating a model to show atoms of solid bromine, liquid bromine, and gaseous bromine. How should her three models differ?

• The size of the atoms should vary depending on the state.
• The mass of the atoms should vary depending on the state.
• The motion of the atoms should vary depnding on the state.
• The identify of the atoms should vary depending on the state.

Which state of matter will take both the volume and shape of the container that holds it?

• gas
• ice
• liquid
• solid

Frost forms when water vapor changes directly to ice in a process called deposition. If you were to model the water particles before and after depostion, how would they compare?

• Before deposition, the partcles vibrate in place; after deposition, they slide by each other
• Before deposition, the particles slide by each other; after deposition, they vibrate in place.
• Before deposition, the particles vibrate in place; after deposition, they move quickly in all directions.
• Before deposition, they particles move quickly in all directions; after depostion, they vibrate in place.

Why does water that is frozen in an ice cube tray stay in the shape of a cube when it is taken out of the tray?

• The water particles become locked in place
• The water particles stop moving completely.
• The water particles grow bigger to fill the space.
• The water particles can only slip past one another.

The diagram illustates all three states of matter. What do each of the states of matter have in common?

• The particles are locked into position
• The particles in each are in constant motion.
• The particles take the shape of their containers
• The particles have the same volume in each container.

Dry ice is solid carbon dioxide. At room temperature, it changes directly into a gas. A model of which of the following would describe this change?

• Evaporation results in a reduction of the mass of carbon dioxide
• Freezing occurs due to a decrease in kinetic energy of the particles
• Sublimation occurs due to an increase in kinetic energy of the particles
• Deposition causes the particles of the carbon dioxide gas to lock into place

A student measured the mass of ice in a glass container with a tight lid. He allowed the ice to melt, and then found the mass of the container, its lid, and its contents again. What conclusion could he draw based on the masses he measured?

• No matter how tight the lid is, some mass is lost when a solid melts.
• The liquid formed from a melted solid has less mass than the solid has.
• The liquid formed from a melted solid has the same mass as the solid has.
• The liquid formed from a melted solid has a greater mass than the solid has.

Tags

CCSS.3.MD.A.2

Nora notices water droplets on the grass in the morning. It did not rain during the night. Which statement is true about this change of state?

• Mass was added to the water particles, resulting in deposition.
• Energy was added to the water particles, resulting in evaporation.
• Mass was removed from the water particles, resulting in sublimation.
• Energy was removed from the water particles, resulting in condensation.

Which changes of state result in a decrease in the kinetic energy of the particles?

• sublimation, melting, boiling
• melting, freezing, evaporation
• sublimation, deposition, melting
• deposition, freezing, condensation