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

The motion of the atoms should vary depending on the state.

The size of the atoms should vary depending on the state.

The mass of the atoms should vary depending on the state.

The identity of the atoms should vary depending on the state.

The illustration shows three different states of a substance. Which of these happens when the substance changes from the state shown in jar B to the state shown in jar A?

The particles move more freely.

The mass of the substance increases.

The identity of the substance changes.

The particles expand to fill their container.

According to kinetic theory, how many particles that make up a substance are constantly in motion?

more than half of the particles but not all

fewer than half of the particles but more than none

Which of these statements describes a liquid?

A liquid has a definite volume but not a definite shape.

A liquid has a definite shape but not a definite volume.

A liquid has both a definite shape and a definite volume.

A liquid has neither a definite volume nor a definite shape.

The diagram shows particles in three states of matter. What do each of the states of matter have in common?

The particles in each are in constant motion.

The particles are locked into position.

The particles take the shape of their containers.

The particles have the same volume in each container.

An ice cube is left on a plate and begins to melt. Which best explains how the molecules of water change?

The molecules begin close together and locked in position, and end up close together but with some room to move.

The molecules began far apart and moving randomly, and end up close together and locked in position.

The molecules begin far apart and moving randomly, and end up close together but with some room to move.

The molecules begin close together, with some room to move, and end up close together and locked in position.

An ice cube melts, and then the liquid water evaporates. Which statement is true about the mass of water that goes through each change of state?

The mass of the water in each state is the same because mass is conserved.

The mass of water increases as the water's volume increases with each change of state.

The mass of water vapor is less than the mass of ice because some water is lost during each change of state.

The mass of water vapor is less than the mass of ice because the density of water vapor is less than the density of ice.

As liquid water loses energy in the form of heat, the water begins to freeze. What causes freezing?

The loss of thermal energy from the water causes its molecules to move slower.

The lost energy causes the bonds between hydrogen and oxygen in the liquid water to break.

The loss of heat causes the molecules in the ice cube to contract and forces them together.

Heat removes thermal energy from the liquid water and causes it to become an ice cube.

Why does the milk flow out of the glass and spread out into a thin puddle rather than staying in the glass or spreading out more on the floor?

The particles can slide past each other, but attractions hold them close together.

The particles can break apart, but cannot move.

The particles cannot move, but they can grow in size.

How can the volume of gas in the balloons be greater than the volume of the cylinder used to fill them?

A gas expands to fill its container.

The volume of the container does not depend on the gas.

How can the properties of the particles in a gas explain why the volume of the balloons is greater than the volume of the container?

The gas particles are bigger in the balloons.

The gas particles are locked in place in the cylinder, but can move in any direction inside the balloons.

The distance between the gas particles is greater in the balloons.

If the gas cylinder is empty after all of the balloons are filled, how does the total number of particles in all the balloons compare to the total number of particles that were in the cylinder?

The number of particles in the balloons is the same as the number of particles that was in the cylinder.

There are fewer particles in the balloons than were in the cylinder.

There are more particles in the balloons than were in the cylinder.

Which are true about the properties of solids, liquids, and gases? Select all that apply.

Liquids and gases can change shape.

Only solids have a fixed shape.

Liquids and gases have a fixed volume.

Solids and gases can change volume.

Sweating is one way the body cools itself. Which statement best explains this cooling process?

Moisture from the body evaporates from the skin, removing thermal energy from the body.

Water condenses on the skin, adding thermal energy to the body.

Which situations model a process similar to sweating? Select all that apply.

a wet bandana around the neck of a hiker

wet clothes hanging on a clothes line

water droplets forming on the outside of a glass of ice water

a hot, moist towel placed on sore muscles to soothe them

Which weather conditions would most likely create the fog as shown in the photo?

rapidly cooling air that is high in water vapor

rapidly cooling air that is low in water vapor

rapidly warming air that is low in water vapor

rapidly warming air that is high in water vapor

As snow slowly melts in the sunshine, what is happening to the particles of water that make up the snow? Circle all that apply.

Particles are changing from liquids to solid.

Reggie puts a beaker of ice and water on a hot plate, as shown, and turns the hot plate on. How is the liquid water, as it is warming, different from the ice?

The average kinetic energy of the ice particles is lower.

The freezing point of the ice is lower.

The temperature of the liquid water is lower.

The motion of the particles that make up the water is slower.

Reggie puts a beaker of ice and water on a hot plate, as shown, and turns the hot plate on. What type of change would you expect the ice to undergo?

A purely physical change because it will change state.

A physical and chemical change because it will change state.

A purely physical change because it will form a new substance.

A physical and chemical change because it will form a new substance.

Energy in the form of heat was applied to a beaker containing a certain substance. The particles of the substance began to move farther apart until they were arranged as shown by the arrow in the diagram. What change of state occurred to the substance in the beaker?

The substance changed from a liquid to a gas.

The substance changed from a gas to a solid.

The substance changed from a gas to a liquid.

The substance changed from a liquid to a solid.

Which energy transfer takes place when water freezes to form ice crystals in the atmosphere?

Energy is transferred from the water into the air.

Energy is transferred from the air into the water.

Energy is transferred from the water into the ground.

Energy is transferred from warmer ice crystals to colder ones.

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

Before deposition, the particles move quickly in all directions; after deposition, they vibrate in place.

Before deposition, the particles 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 more quickly in all directions.

Addison warms a pure, solid substance in a system closed off from the surroundings. He listed the changes in temperature over time and the physical state of the substance. Which of these could represent the missing values in Addison’s data table?

X = −50; Y = −100; Z = −50

X = −50; Y = −100; Z = −150

Which phrase describes the changes that take place when a gas condenses?

loss of energy and decreased particle motion

loss of energy and increased particle motion

gain of energy and increased particle motion

gain of energy and decreased particle motion

How does increasing thermal energy affect a substance's kinetic energy?

The kinetic energy does not change.

Chem Unit 2 States of Matter

Authored by Nicky Kupke

Science

6th - 8th Grade

NGSS covered

Used 86+ times

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90 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why does solid water (ice) float when placed in liquid water?

Ice is less dense than liquid water.

Ice is more dense than liquid water.

Ice has less mass than the water in which it is floating.

Ice has less volume than the water in which it is floating.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jada and Brian are using a venn diagram to organize the information they learned about solids, liquids, and gases. What should they write where all of the states overlap at position 7?

Particles are spaced far apart.

Particles are constantly moving.

Shape depends on the container.

Sample does not take shape of the container.

Tags

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

ice

gas

solid

liquid

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A student drew models of particles in a substance. Which model best represents the particles in a solid?

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A solid sample of oil is warmed until it turns into a liquid. Which property of the oil will decrease?

density

volume

kinetic energy

thermal energy

Tags

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A child is upset because his ice cream is melting. He thinks he now has less dessert. Which of these explanations correctly states why the child is incorrect?

No mass is lost during a change of state.

He actually has more, not less, ice cream.

The mass will increase if he freezes the melted ice cream.

Mass is lost only during certain changes of state, such as freezing.

Tags

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement explains why a rock does not sink in a lake that is frozen over?

Particles in a solid are fixed in place.

Particles are much harder in a solid than a liquid.

Particles are much closer together in a solid than a liquid.

Particles in a solid are moving too fast for anything to penetrate them.

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Chem Unit 2 States of Matter

Why does solid water (ice) float when placed in liquid water?

Jada and Brian are using a venn diagram to organize the information they learned about solids, liquids, and gases. What should they write where all of the states overlap at position 7?

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

A student drew models of particles in a substance. Which model best represents the particles in a solid?

A solid sample of oil is warmed until it turns into a liquid. Which property of the oil will decrease?

A child is upset because his ice cream is melting. He thinks he now has less dessert. Which of these explanations correctly states why the child is incorrect?

Which statement explains why a rock does not sink in a lake that is frozen over?

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

The illustration shows three different states of a substance. Which of these happens when the substance changes from the state shown in jar B to the state shown in jar A?

The diagrams show the particle arrangement of the same material in three different states of matter. Which diagram most likely represents the state in which particles are moving fastest?

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