Part 2

Question 1

The fire triangle

Answer 1

A diagram that shows three factors that allow combustion to continue: heat, fuel and oxygen

Question 2

Complete combustion

Answer 2

Burning of a fuel in the presence of plenty of oxygen

Question 3

Incomplete combustion

Answer 3

Burning of a fuel in the presence of limited oxygen

Question 4

Control variable

Answer 4

Variable that will effect the dependent variable and will need to be controlled

Question 5

Fair test

Answer 5

An experiment where only changes to the independent variable causes changes in the dependent variable

Question 6

Impurity

Answer 6

An unwanted substance found mixed in a useful substance

Question 7

Non metal

Answer 7

Any element that is not shiny, and does not conduct heat and electricity well

Question 8

Mass

Answer 8

The amount of matter something is made from. Measures in grams (g) or kilograms (kg)

Question 9

Conservation of mass

Answer 9

Mass is never lost or gained in a chemical reaction

Question 10

Variable

Answer 10

Anything that can change and be measured