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Earth Science
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Review of National Geographic 2nd Grade Earth Science
Flashcards
18 cards
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Practice quiz
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Host live
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Questions
18
Answers
1
The picture shows a newly formed gully running across a farm field. How was it formed?
Digging Animals
Moving water
Blowing wind
2
Wind & Water can move rocks from a place to a new place. What is this process called?
Weathering
Erupting
Erosion
3
What do rocks that have been weathered and eroded by moving water usually look like?
Colorful
Square with sharp edges
Round and smooth
4
Wind can blow away soil needed for crops. What can a farmer do to block the wind?
pave the land around the crops
farm on the higher ground
plant a row of tall bushes
5
Look at the pictures of the beach and the gorge. Which will water change faster?
Water will change the gorge faster
They will change at the same rate
Water will change the beach faster
6
Which of these changes to Earth's surface could YOU actually observe while it is happening?
C
A
B
7
A flood can change the shape of the land. Which of these structures can help control flooding?
a windbreak
a rain garden
a levee
8
Which best describes how water moves?
It runs downhill
It moves uphill and downhill like a road
It runs in circles
9
How does the water in a river usually move when the river reaches flatter ground?
It slows down
It stops
It speeds up
10
Which is the smallest body of water ?
A lake
An ocean
A pond
11
which of these is a SLOW change to the land?
water weathering rock to make its surface smooth
a landslide causing rocks to move down a hillside
melted rock erupting from a volcano
12
Which of the following are most likely to be found on a physical (landform) map?
Lakes, rivers, and oceans
Photographs of plants and animals
History of different countries
13
What is a glacier?
A fast-moving mountain stream
Water surrounding the continents
A slow-moving sheet of ice
14
What does the surface of rock that water has been running over for hundreds of years feel like
Smooth
Rough
Sticky
15
What is happening when Earth's surface moves and shakes?
Wind is eroding rock
Water is weathering a rock
An earthquake is occurring
16
Which covers more of Earth's Surface?
Rivers
Lakes
Oceans
17
The wind is carrying sediment that is hitting a rock. How is wind changing a rock?
The wind is weathering the rock
The wind is moving the rock
The wind is building up the rock
18
How can people stop runoff from eroding soil?
build a levee
build a rain garden
build a windbreak
