Share Grade 3 UNIT 2
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what happens when a solid dissolves in a liquid?
the solid dissapears and becomes part of the liquid
which of these is an example of an undissolved?
sand in water
if a substance is soluble, it means it can:
dissolve in liquid
if a substance is insoluble, it means it can:
be filtered
Something that is insoluble will not:
dissolve in a liquid
what is the process of separating metal from rocks?
smelting
tools is used for filtering?
A sieve
what the name of the ore to make iron?
hematite
what is the name of ore to make aluminum?
Bauxite
oil and natural gas are formed from the remains of?
Plants and animals
Natural gas is renewable or nonrenewable resource?
nonrenewable resource
what is the difference between dissolving and undissolving?
dissolving is when a solid dissapears in a liquid, and undissolving is when it does not
can we separate lemonade powder mixed in water, using filter paper?
we can't
can we separate sand mixed in water, using filter paper?
we can
what is hematite?
A type of iron ore
where we can find oil and natural gas?
underground
