3.1 states of matter

Question 1

What are the three states of matter?

Answer 1

Liquid, solid, gas

Question 2

How are the particles arranged in a solid?

Answer 2

The particles in a solid are packed closely together and vibrate around fixed positions

Question 3

How are particles arranged in a liquid?

Answer 3

The particles in a liquid are close together but can slip and slide over each other in random motion

Question 4

How are the particles arranged in a gas?

Answer 4

The particles in a gas have, on average, lots of space between them and zoom around randomly

Question 5

What happens to energy in melting and boiling?

Answer 5

In melting and boiling, energy transferred from the surroundings to the substance

Question 6

What happens to energy in freezing?

Answer 6

In freezing and condensing, energy transferred from the substance to the surroundings

Question 7

What is state of matter?

Answer 7

States of matter tells us whether a substance is a solid, a liquid or, a gas

Question 8

What is the particle theory?

Answer 8

The particle theory explained the properties of materials by describing the movement of a distance between their particles