WorksheetsGrade 7 9.7 Rusting
Total questions: 15
Worksheet time: 8mins
What element rusts?
carbon
manganese
iron
potassium
What environmental element assists rusting?
nitrogen
oxygen
carbon
hydrogen
A rusting bicycle
physical change
chemical change
What conditions are required for rusting?
dry cold conditions
dry hot conditions
hot damp conditions
Rusting is an example of
oxidation
reduction
What two things cause Iron to Rust ?
Air and Oxygen
Water and Carbon dioxide
Oxygen and Water
Carbon dioxide and Air
What is the chemical name given to Rust ?
Iron dioxide
Iron oxide
Steel oxide
Carbon dioxide
What prevents Rusting
Painting , Oiling , Galvinising
Washing with water
Raising the temperature of a chemical reaction would make the reaction __________________.
happen slower
stop completely
happen faster
proceed as normal
How do chemical reactions turn substances into new substances?
with burning acid
the atoms break apart and combine back together in new ways
the molecules mix together and create new substances
the ionic compounds mix in water to form solutions
In which tube will the nail go rusty?
The nail in tube A will go rusty.
The nail in tube B will go rusty.
The nail in tube C will go rusty.
