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Grade 5 Science Review
Chapter A1
Words To Know
•minerals•hand lens•electron microscope
•microscope
•crystals•cleavage•luster•scale
What happens to crystals when they
break apart?•They stay
the same, but become smaller or
•They turn into dust.
They stay the same shape, but become
smaller.
What tool is used to make things look 1,000 times
bigger?• microscope
• hand lens or
• electron microscope
electron microscope
What is a structure that has a regular, repeating
pattern?
•cleavage or
•crystal
crystal
Which crystal is used in cement and concrete?
•quartz sand or
•gemstones
quartz sand
What is a non-living piece of solid matter that makes
up rocks?
• chlorophyll
• minerals or
• water
minerals
Name a crystal that has a flat shape like a thin book.
•salt or
•sugar
sugar
If you want to look at smaller objects more closely, what should
you do?• Enlarge them with
a hands lens
• Hold objects away from your eye or
• Enlarge them with a microscope
Enlarge them with a hand lens and/or
Enlarge them with a microscope
What is the way a crystal reflects light
called?• cleavage
• hardness
• luster or
• color
luster
Name the four properties of
gemstones/crystals.
• cleavage, color, luster, scale or
• hardness, cleavage, luster, color
hardness, cleavage, luster, color
What is the purpose of a hand lens or microscope?
• to take a picture or
• to magnify objects
to magnify objects
What are rocks that have a crystal lining inside them called?
• geodes
• mica or
• feldspar
geodes
Name a crystal that does not come from a
mineral.
• salt or
• sugar
sugar
What mineral is gathered from the
ocean?
• water
• salt or
• sugar
salt
What is a way a crystal breaks called?
• hardness
• cleavage or
• luster
cleavage
What scale is used to classify the minerals’
hardness?• Gypsum’s Scale of
Hardness or
• Moh’s Scale of Hardness
Moh’s Scale of Hardness
Hardness Minerals
1 Talc
2 Gypsum
3 Calcite
4 Fluorite
5 Apatite
6 Feldspar
7 Quartz
8 Topaz
9 Corundum
10 Diamond
What test is used to determine the hardness
of a crystal?
• Scratch test
• Hardness test or
• Strength test
Scratch test
What would you see if you crushed a grain of salt and
observed the pieces through a microscope?
• powder
• Repeating pattern in a cubic shape or
• Larger salt crystals
repeating pattern in a cubic shape
Compare Salt & Sugar Characteristics
Salt Sugar
mineral
dissolves in water dissolves in water
cubic rectangular
crystal crystal
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