Download Fourth Grade Science Vocabulary

Fourth Grade Science Vocabulary
GOAL
WORD
PAGE
DEFINITION
ASSOCIATED CONCEPTS
The learner will conduct investigations and use appropriate technology to build an understanding of the composition of rocks
2
and minerals
C6
Naturally occurring substances that are
Rocks are made of minerals-the building
Mineral
neither plants nor animals-have own chemical blocks of rocks
composition
Identify minerals through their properties:
color, hardness, luster & streak color
C9
Formed from hot, molten rock material that
Molten rock underground=magma cools
Igneous rock
has cooled and harden
slowly=larger mineral grains-course texture
Molten rock above ground=lava cools more
quickly=small grains =fine texture or no
grains = volcanic glass
C10
Form from smaller bits of rock that become
Some are made of substances that were once
Sedimentary
pressed or cemented together in layers.
living; others form when minerals dissolve in
rock
lakes and rivers.
C12
Rock that has been changed by heat, pressure One type-pressure causes minerals to spread
Metamorphic
or both-before they were another type of rock out in bands-rocks can break along these
rock
bands into layers
Other types do not have bands nor break in
layers
Rock cycle
C13
Luster
Streak plate
C7
C7
Never-ending process by which rocks are
Diagram on C13
changed from one type into another.
Way light bounces off a rock
Streak from a mineral comes from rubbing the Streak tests are easy & helpful in mineral
rock gently but firmly on a streak plate (tool) identification. The streak is simply the color
of the powdered mineral.
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