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Earth Materials Unit Test
Earth Materials Unit Test
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3rd Grade Earth Materials Science Test
Flashcards
33 cards
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Practice quiz
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Questions
33
Answers
1
What is igneous rock made of?
gases and melted minerals
sedimentary rock that has been squeezed
tiny pieces of rock
2
Which type of rock is formed when layers of sediment pile and harden over time?
igneous
sedimentary
metamorphic
3
How do you know a mountain range is older?
high peaks
weathering and erosion have caused mountain to be round
points and ridges
4
What is luster?
how a mineral reflects light
the hardness of a mineral
the color of a mineral
the streak a mineral leaves
5
The outer layer of the Earth. This is where we live.
inner core
outer core
crust
mantle
6
Which process or event changes Earth's land quickly?
deposition
erosion
volcanic eruption
weathering
7
Hot, molten rock deep within the Earth's surface.
metal
mantle
magma
crust
8
If scientist found a walrus tusk in South Carolina, what would this tell you?
Long ago, SC was a desert
Long ago, SC was just like it is today
Long ago, SC was a rainforest
long ago SC was cold
9
Which of the following is a fossil fuel?
peat
electricity
oil
wood
10
Which type of soil does water pass through quickly?
silt
clay
sand
11
Which often slow process breaks rocks into smaller pieces?
weathering
erosion
deposition
gravity
12
How much of the Earth is covered by water?
25%
10%
75%
1%
13
If a scientist find a fossil of a fish in a desert, what does this mean?
long ago, this area was covered by water
there is lots of water in a desert
fish love deserts
fish like sand
14
Where is MOST of Earth's FRESH water found?
oceans
rivers
ponds
glaciers and ice caps
15
Scientists who dig for, and study fossils.
garbologists
biologist
geologist
palentologists
16
Which property can help you identify a mineral?
shape
mass
hardness
size
17
During erosion, what usually carries loose, broken rocks to new places?
plants
earthquakes and volcanoes
landslides
wind or water
18
Most of the water on the Earth is this type of water.
salt
brackish
fresh
19
Type of fossil formed when sand containing an imprint becomes rock.
mold fossil
cast fossil
tree sap fossil
petrified fossil
20
How do people use peat?
to run cars
to cook and heat things
to run a lawn mower
to make electricity
21
Where do most rivers flow or lead to?
a stream
a glacier
a sea or ocean
a lake
22
Which Earth materials do crops need to grow?
soil and fresh water
wood and peat
iron ore and copper
aluminum and steel
23
Scientists who study rocks and other Earth materials.
biologist
specialists
geologist
palentologist
24
How do scientists classify rocks?
taste
touch
smell
the way they were formed
25
What type of rock forms when a rock is changed by high heat and pressure?
sedimentary
igneous
metamorphic
26
What can scientist learn by studying fossils?
What will happen in the future
What ancient plants tasted like
Environments of the past.
why mosses grow
27
Fossils are mainly formed in this type of rock.
minerals
sedimentary
igneous
metamorphic
28
What occurs when water covers land that is usually dry?
delta
volcanic eruption
earthquake
flood
29
The layer of the Earth that is the hottest and a solid metal ball.
mantle
crust
inner core
outer core
30
What is humus made of?
decaying plants and animals
tiny bits of rock
sand
31
Cleavage is how a mineral breaks. Do all minerals break in the same way?
Unsure
No
Yes
32
Steel is a strong metal building material. What is steel mostly made of?
copper
gold
iron
aluminum
33
What is a glacier?
water found in a lake
a large moving body of ice
a large opening in the Earth's crust
water found in the air
