a.[3]
Different mixtures can be separated using different methods. Draw a line from each separation process to the correct apparatus used. Use only one line for each process.
b.[1]
A student is given a mixture of sand and iron filings. Suggest a physical method that they could use to separate the iron filings from the sand.
c.[2]
The student burns a piece of magnesium metal ribbon in oxygen to form solid magnesium oxide. This is an example of a chemical change. Write down two ways the student will know a chemical reaction has taken place.
d.[1]
The particle model shows how particles are arranged and how they move in solids, liquids, and gases.
Describe how the particles are arranged in a gas.
e.[1]
Describe how the particles move in a gas.