SCI8_Q3_M1_The Particle Nature Of Matter (3)

What are the three states of matter?

Solid, liquid, and gas.

What is matter?

Matter is anything that occupies space and has mass.

How is matter classified based on physical state?

Matter can be classified as solids, liquids, and gases.

What is an element?

An element is a substance that cannot be broken down into simpler substances by any chemical method.

What is a compound?

A compound is made up of two or more elements that can be broken down into simpler components only by chemical methods.

How do particles move in a solid?

Particles in a solid are closely packed and can only vibrate in fixed positions.

Why can gas be compressed more easily than liquid?

Gas particles have large spaces between them, making it easier to compress.

What are the properties of liquids?

Liquids have a definite volume but no definite shape; they take the shape of their container.

What is the boiling point of a liquid?

The boiling point is the temperature at which a liquid turns into gas.

What is density?

Density is the measure of how tightly packed a material is.

What happens to the volume of materials when heated?

The volume of materials generally increases as materials are heated.

What are homogeneous and heterogeneous mixtures?

Homogeneous mixtures have a uniform composition, while heterogeneous mixtures do not.

What happens to the movement of particles as temperature increases?

As temperature increases, the particles gain kinetic energy and move faster.

What is the freezing point?

The temperature at which a liquid turns into solid.

Why does ice float on water?

Ice floats on water because it is less dense than liquid water.

What is the significance of mass in relation to matter?

Mass tells us how much matter an object contains.

What defines a pure substance?

A pure substance has a constant composition and properties throughout the sample.

What are the types of mixtures?

The two main types of mixtures are homogeneous mixtures and heterogeneous mixtures.

What is the melting point of a substance?

The temperature at which a solid turns into liquid.

Define mass.

Mass is the amount of matter in an object.

What role do forces of attraction play in different states of matter?

The strength of forces of attraction between particles varies: stronger in solids, weaker in liquids, and very weak in gases.

How is the volume of a solid calculated?

Volume of solid is calculated by multiplying the length, width, and height.

What is a mixture?

A mixture is a physical combination of two or more substances in which their identities are retained.