Changes in Matter

What is a state change?

• A process where a substance changes from one state of matter to another, such as from solid to liquid or liquid to gas.

• A chemical reaction that alters the molecular structure of a substance.

• A physical change that does not affect the state of matter.

• A process that occurs only at high temperatures and pressures.

What is an example of a gas turning into a liquid?

• Water vapor condensing into rain.

• Ice melting into water.

• Steam rising from a kettle.

• Oxygen dissolving in water.

What is an example of a mixture?

• Salad, which can be separated into its individual ingredients.

• Water, which is a pure substance.

• Sand, which is a single element.

• Oxygen, which is essential for respiration.

What is the definition of matter?

• Matter is anything that has mass and takes up space.

• Matter is a substance that can be seen and touched.

• Matter is a form of energy that can be converted into mass.

• Matter is anything that exists in a solid state.

What happens to the weight of a substance during a state change?

• The weight of a substance increases during a state change.

• The weight of a substance decreases during a state change.

• The weight of a substance remains the same during a state change; it does not gain or lose weight.

• The weight of a substance fluctuates during a state change.

What happens to an ice cube when it melts?

• It evaporates into gas.

• It undergoes a state change from solid to liquid.

• It remains solid but becomes colder.

• It turns into a slush-like mixture.

What is condensation?

• The process where a liquid turns into a gas.

• The process where gas turns into a liquid, such as water vapor turning into dew.

• The process of freezing water into ice.

• The process of evaporating water into vapor.

What is the difference between a substance and a mixture?

• A substance can be separated into other materials, while a mixture cannot be separated.

• A substance is always a solid, while a mixture can be solid, liquid, or gas.

• A substance cannot be separated into other materials, while a mixture can be separated.

• A substance is a combination of two or more elements, while a mixture is a single element.

What does it mean when we say 'no matter is gained or lost' during a state change?

• The total amount of matter remains the same, even though its form may change.

• Matter can be created or destroyed during a state change.

• The mass of the matter increases during a state change.

• Matter changes its state without any change in temperature.

What are particles?

• Particles are the small pieces that make up all matter.

• Particles are the largest components of atoms.

• Particles are only found in liquids and gases.

• Particles are the building blocks of energy.