Describing Matter Practice Quiz
Mrs. Bousquet
8 Blue
#1 Physical or Chemical
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Texture – physical
Color – physical
Ability to react (rust, etc.) – chemical
State of matter (solid, liquid, gas) – physical
Flammability – chemical
#2 What is an element?
• An element is a pure substance that cannot be
broken down into other substances by
CHEMICAL OR PHYSICAL means.
• Examples include aluminum, zinc, copper, iron
#3 What is a compound?
• A compound is a pure substance made of two
or more elements CHEMICALLY COMBINED IN
A SET RATIO.
• Examples are carbon dioxide, salt, table sugar
#4 How is a heterogeneous mixture
different from a homogeneous mixture?
• In a heterogeneous mixture you can see the
different parts because it is NOT evenly mixed.
• In a homogeneous mixture the parts are so
evenly mixed you can’t see the parts.
#5 How are compounds different than
mixtures?
• Compounds are PURE SUBSTANCES made of
two or more elements chemically combined
and the compound has DIFFERENT
PROPERTIES than the uncombined elements.
• Mixtures are two or more substances together
in the same place but NOT chemically
combined. In a mixture, each substance keeps
its own properties.
#6 Is melting a chemical or physical
property?
• Melting is a PHYSICAL property. When you
observe melting, the substance is not
changing into another substance, it is just
changing physical state.
#7 What elements make up plant
sugar, C6H12O6?
• C is for carbon (6 atoms of carbon)
• H is for hydrogen (12 atoms of hydrogen)
• O is for oxygen (6 atoms of oxygen)
#8 Is seawater a mixture?
• Seawater is not pure water, it has many
substances dissolved or floating in it, such as
salt, other minerals and substances (fish poop,
etc.). There is no set ratio for seawater.
#9 How could you retrieve roofing
nails from a flower bed?
• Use a strong magnet to wave over the flower
bed to retrieve the nales. The iron in the nails
will be attracted to the magnet.
#10 What process could you use to get
pure water out of sea water?
• Distill the solution of seawater by boiling the
seawater and capturing the water vapor in a
tube, where the water vapor would condense
and drip into a flask as pure water.