Energy & Materials Year 8

Which of these isn't in the fire triangle?

• Fuel
• Heat
• Oxygen
• Carbon dioxide

Another term for burning is

• Fire triangle
• Magnesium oxide
• Combustion
• Bustion

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Is combustion a reversible reaction?

• Yes.
• No.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The conditions which are required for combustion to take place are:

• fuel
• heat
• oxygen
• all of these

8.7: Combustion is when a __________ reacts with oxygen

• petrol

• fuel

• fire triangle

• carbon dioxide

The word equation for combustion is: fuel + oxygen --> water + ________ __________

• Carbon dioxide
• Limewater

What do we use limewater to test for?

• Carbon dioxide
• Water
• Heat
• Smoke

What is the test for hydrogen?

• Hydrogen extinguishes a burning splint
• Hydrogen burns with a squeaky pop
• Hydrogen relights a glowing splint
• Hydrogen turns limewater cloudy 

What is essential for a combustion reaction to begin?

• Carbon dioxide
• Fuel 
• Fuel, oxygen and heat
• Water and oxygen

All combustion reactions are 

• endothermic
• exothermic
• neutral
• fast