Science
Test Study Guide Chapter 1 Unit B
Important
Vocabulary
matter-anything
that has mass and takes up space
mass-the amount of
material that an object has in it
volume-the amount
of space that matter takes up
mixture-two or more substances
that are mixed together but can be easily separated
solution-a mixture in which
one substance spreads evenly throughout another substance
meter-a unit for measuring
length
liter-a unit for measuring
volume
graduated cylinder- a tool
used to measure the volume of liquids
gram-the basic unit for
measuring mass
density-how much mass is in a
certain volume of matter
physical change-a change in
matter that changes physical properties, but does not produce a different kind
of matter
melting point-the temperature
at which matter changes from a solid to a liquid
boiling point-the temperature
at which matter changes from a liquid to a gas
freezing point-the temperature
at which matter changes from a liquid to a solid
chemical change-a change in
matter produces a different kind of matter
Important Information
-Three states of matter are
solid, liquid and gas
-Molecules move faster as heat
is added
-Molecules move slower as heat
is removed
-Combining a pudding mix with
milk is an example of a solution
-Making a vegetable salad is
an example of a mixture
-To measure length, use a
meter, millimeter or kilometer
-To measure the volume of an
object with an irregular shape, such as a rock, use a graduated cylinder
-To measure volume use a liter
or milliliter
-To measure mass, use a gram,
kilogram or milligram
-Use a balance to find the
mass of an object
-Water, syrup and vegetable
oil separate in a cup because they have different densities
-In the example above, the
syrup is denser since it is on the bottom
-Cutting paper, breaking a
glass and changing states of matter are physical changes
-Making pancakes, rust,
tarnish and fire are examples of chemical changes
*Use the pink units of
measurements paper to help you remember which units you should use for large
(long) and small (short) things.
