States of Matter

What is melting?

• The process of a solid turning into a liquid when heated.

• The process of a liquid turning into a gas when heated.

• The process of a solid becoming a gas without turning into a liquid.

• The process of a gas turning into a liquid when cooled.

What role does heat play in chemical changes?

• Heat has no effect on chemical changes.

• Heat can slow down a chemical change.

• Heat can speed up a chemical change, often producing a new substance.

• Heat only affects physical changes, not chemical changes.

What is a gas?

• A state of matter that has no definite shape or volume.

• A solid that can change shape easily.

• A liquid that has a fixed volume but no fixed shape.

• A form of matter that can be compressed into a smaller volume.

What is a liquid?

• A state of matter that has a definite volume but takes the shape of its container.

• A state of matter that has a definite shape and volume.

• A state of matter that can be compressed easily.

• A state of matter that has no definite volume or shape.

What is a solution?

• A type of mixture where one substance dissolves in another.

• A solid substance that cannot dissolve in any liquid.

• A gas that is mixed with another gas to form a compound.

• A liquid that contains only one type of molecule.

What is condensation?

• The process of a gas turning into a liquid when cooled.

• The process of a liquid turning into a gas when heated.

• The process of a solid turning into a liquid when heated.

• The process of a gas turning into a solid when cooled.

What happens to the particles in a liquid?

• They are far apart and do not move.

• They are close together but can move past each other.

• They are in a fixed position and cannot move.

• They are constantly moving in a straight line.

What is a solid?

• A state of matter that has a definite shape and volume.

• A state of matter that flows and takes the shape of its container.

• A state of matter that has no definite shape or volume.

• A state of matter that can be compressed easily.

What is a mixture?

• A combination of two or more substances that retain their individual properties.

• A single substance that cannot be separated into its components.

• A chemical reaction between two or more elements.

• A solution that has uniform composition throughout.

What happens to the particles in a solid?

• They are loosely arranged and move freely.

• They are closely packed together and vibrate in place.

• They are spread out and can flow easily.

• They are in a gaseous state and move rapidly.