TEMA 5. MATTER

which one is NOT a homogeneous mixture

• milkshake

• salad

• salt and water

• orange juice

from liquid to gas

........................... occurs when there is no oxygen and it involves microorganisms which transform sugars into organic substances.

what is the difference between a physical and a chemical change?

Substance with a DEFINITE shape and DEFINITE volume...

• solid
• liquid
• gas

from liquid to solid

from gas to liquid

What is decantation?

• Distillation
• Desalination
• Separating particles by careful pouring.
• Measuring boiling points.

How do you separate iron filings from sand?

• You can use a filter.
• You can use a fagnet.
• You can use a magnet.
• You can use all of the methods!

how is it called when the state of the matter changes from solid to liquid