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Earth Science

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2nd grade

Science

an hour ago by

Laura Devore

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Slide 1
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Earth Science
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Slide 2
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Rocks and Minerals
Rocks can be sorted by physical properties: texture, color, hardness, and size.
Texture: rough, smooth, bumpy, sharp
Color
Hardness: soft (chalk) or hard
Size: sand(smallest), gravel, pebble, boulder(largest)
Size (measured using a ruler)
All rocks are solids
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Slide 3
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The Moon
The moon is a satellite that orbits around Earth.
The moon gets its light from the sun.
The moon moves though all of its phases in about a month
The moon moves from new moon(no light), to first quarter (right light), to full moon, to last quarter(left light) and continues in this pattern.
You should use a calendar to record the appearance of the moon's phases
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Slide 4
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The Sun
The sun is a star.
The sun creates light and heat for Earth
The sun is highest in the sky at noon.
The sun follows the same pattern every day.
The sun rises (sunrise) in the east and sets in the west (sunset).
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Question 5
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Q.
Rocks can be rough or smooth.
answer choices
True
False
True
alternatives
False
answer explanation
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Question 6
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Q.
Rocks can be different colors.
answer choices
True
False
True
alternatives
False
answer explanation
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Question 7
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Q.
Rocks can be large or small.
answer choices
True
False
True 
alternatives
False
answer explanation
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Question 8
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Q.
Which science tool should you use to measure a rock?
answer choices
scale
ruler
rain gauge
thermometer
scale
alternatives
ruler
rain gauge
thermometer
answer explanation
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Question 9
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Q.
What follows the same pattern every day?
answer choices
moon
sun
weather
clouds
moon
alternatives
sun
weather
clouds
answer explanation
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Question 10
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Q.
All rocks are...
answer choices
liquids
solids
brown
boulders
liquids
alternatives
solids
brown
boulders
answer explanation
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Question 11
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In order to record data of the moon's appearance you should use...
answer choices
thermometer
pictograph
bar graph
calendar
thermometer
alternatives
pictograph
bar graph
calendar
answer explanation
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Question 12
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The moon moves through all of its phases in...
answer choices
a month
a day
a year
an hour
a month
alternatives
a day
a year
an hour
answer explanation
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Question 13
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Q.
What word describes the smallest rock?
answer choices
sand
pebble
boulder
gravel
sand
alternatives
pebble
boulder
gravel
answer explanation
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Question 14
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Q.
Which word describes the largest rock?
answer choices
boulder
pebble
sand
gravel
boulder
alternatives
pebble
sand
gravel
answer explanation
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Question 15
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Q.
What are the physical properties of rocks?
answer choices
color
size
hardness
all of the above
color
alternatives
size
hardness
all of the above
answer explanation
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