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