Chemestry Yr.7

Question 1

Particle

Answer 1

A particle is a microscopic building block that builds up everything around us

Question 2

Melting

Answer 2

This is when a source of heat provides heat-energy to the particle and the particles speed up, breaking the bonds and turning the solid to liquid

Question 3

Evaporation

Answer 3

This is when a liquid is given so much heat-energy it boils and starts moving quickly, like a gas, and it will start to become invisible and goes from liquid to gas

Question 4

Condensation

Answer 4

This is when particles in a gas have been cooled down and start to become like a liquid, more slowed down, this happens until it is a liquid

Question 5

Freezing

Answer 5

This is when particles in a liquid cool down so much they can no longer move and become solid

Question 6

Cooling

Answer 6

This is when something’s temperature drops

Question 7

Heating

Answer 7

This is when something’s temperature rises

Question 8

Dissolving

Answer 8

This is when a solid merges with a liquid to make a solution

Question 9

Solution

Answer 9

This is what is made when you merge a solid and a liquid

Question 10

Solute

Answer 10

This is the thing that will dissolve into the solvent

Question 11

Solvent

Answer 11

This is what the solute dissolves into

Question 12

Chemical reaction

Answer 12

A chemical reaction is when two or more elements bond to make a product