1) What type of change is ice melting? a) Physical b) Chemical 2) What type of change is combustion (burning)? a) Physical b) Chemical 3) What type of change is steam condensing on a window? a) Physical b) Chemical 4) Heat and Oxygen is needed for combustion. What else is needed? a) Carbon Dioxide b) Water c) Fuel d) Energy 5) What has been removed from the fire triangle when a blanket is put over flames? a) Heat b) Oxygen c) Fuel d) Water 6) When fuels burn in air they reaction with... a) Water b) Oxygen c) Nitrogen d) Carbon Dioxide 7) When iron burns in Oxygen what is made? a) Iron Oxide b) Iron Peroxide c) Iron Dioxide d) Iodide 8) What is made when Zinc burns in air? a) Zinc Dioxide b) Magnesium Oxide c) Zinc Oxide d) Zinc 9) When a fuel burns in plenty of Oxygen, what is made? a) Nothing b) Carbon Dioxide only c) Water only d) Carbon Dioxide and Water 10) When Carbon Dioxide is bubbled through limewater it... a) Turns red b) Turns green c) Becomes cloudy d) Stays clear 11) Cobalt chloride paper can be used to test for... a) Carbon Dioxide b) Oxygen c) Water 12) Another name for burning is... a) Hydration b) Reduction c) Flammable d) Combustion 13) When trees are cut down to prevent a forest fire spreading, what is removed? a) Oxygen b) Fuel c) Heat 14) What do fuels need to start burning? a) Water b) Carbon Dioxide and Heat c) Oxygen and Heat d) Heat only 15) Which of these is not a fuel a) Wood b) Paper c) Oxygen d) Petrol 16) Paper burning is a... a) Chemical change b) Physical change 17) If you see bubbling during a chemical reaction it means... a) It is a physical change b) A gas is being produced c) Heat is being given off 18) Which of these is NOT a sign a chemical reaction is happening? a) Colour change b) Bubbling c) Nothing happening d) A temperature change (e.g. tube feeling warm) 19) When Carbon burns in Oxygen, what is made? a) Carbon Oxide b) Carbon Peroxide c) Carbon Dioxide d) Nothing 20) When you put a jar over a candle, it goes out because... a) Heat is removed b) Water is removed c) Oxygen is removed d) The fuel is removed

Y7 Chemical Changes

by
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?