S1 Chemical Reactions

Which one of these examples is NOT a chemical reaction?

• Firework Exploding

• Ice Melting

• Car Rusting

• Baking a Cake

What examples are indicators of a chemical reaction? Tick all that apply...

• Colour Change

• Precipitation

• Gas Released

• Energy Change

• Solid Dissolving

Which one of these will NOT increase the rate of a reaction?

• Increasing Temperature

• Increasing Particle Size

• Increasing Concentration

• Adding a Catalyst

Oxygen, heat and __________ make up the fire triangle.

What are the three fossil fuels?

• Oil, Natural Gas, Stone

• Coal, Trees, Fish

• Coal, Oil, Natural Gas

• Plants, Seaweed, Oil

What are the two chemical products when fossil fuels combust (burn)? Tick all that apply.

• Fire

• Smoke

• Water

• Carbon Dioxide

• Heat

_______ ________ is caused by burning fossil fuels. It can be harmful to marine life, buildings and trees.

Rocks which metals can be extracted are called metal ______?

• Gems

• Diamonds

• Coal

• Ores

What is this extraction process called?

• Electricity

• Electrifying

• Electrolysis

• Splitting

How can copper be extracted from copper oxide?

• Heating

• Heating with carbon (charcoal)

• Electrolysis

• Smashing it up