What is Matter?

What do gases have in common?

• Gases have a definite shape and volume.

• Gases are incompressible.

• Gases do not have a definite shape or volume.

• Gases are always visible.

What do liquids have in common?

• Liquids have a definite shape and a definite volume.

• Liquids do not have a definite shape, but they do have a definite volume.

• Liquids have a definite shape but no definite volume.

• Liquids have neither a definite shape nor a definite volume.

What happens to the molecules in a liquid when heated?

• They lose energy and move closer together.

• They gain energy and may start to move apart, potentially becoming a gas.

• They remain unchanged regardless of temperature.

• They become solid and compact.

What happens to the molecules in a solid when heated?

• They lose energy and become more rigid.

• They gain energy and may start to move more freely, potentially becoming a liquid.

• They remain unchanged regardless of temperature.

• They break apart into individual atoms.

What is the difference between mass and weight?

• Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

• Mass and weight are the same; both refer to the quantity of matter in an object.

• Weight is the amount of matter in an object, while mass is the force of gravity acting on that matter.

• Mass is a measure of an object's volume, while weight is a measure of its density.

What is an example of a solid?

• Ice

• Water

• Steam

• Vapor

How are molecules in a solid different from molecules in a liquid?

• Molecules in a solid are more tightly packed than molecules in a liquid.

• Molecules in a solid are more spread out than molecules in a liquid.

• Molecules in a solid move freely like those in a liquid.

• Molecules in a solid have no fixed shape unlike those in a liquid.

What is an example of a gas?

• Oxygen

• Water

• Iron

• Gold

What is mass?

• The amount of matter in an object.

• The weight of an object in a vacuum.

• The volume of an object measured in liters.

• The density of an object compared to water.

Can you name a property of solids?

• Solids have a definite shape and volume.

• Solids can flow and take the shape of their container.

• Solids have no fixed volume but a definite shape.

• Solids are always transparent.