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WorksheetsPre-test (Earth Science)
Total questions: 15
Worksheet time: 8mins
Which is NOT true about the Earth?
a terrestrial planet
has an atmosphere
has one moon
revolves around the sun for 24 hours
Where did the water in Earth's early oceans come from?
the escape of water vapor and other gases from the molten rocks of the Earth
a comet which hit the earth
an asteroid that collided with the earth
the moon
Which layer of the atmosphere is the ozone layer found?
exosphere
troposphere
stratosphere
mesosphere
What do you call the rocks formed from solidified lava?
igneous rocks
metamorphic rocks
sedimentary rocks
extrusive rocks
Using Moh’s scale, which of the minerals is the hardest?
calcite
steel
corundum
quartz
Which property is the least reliable way of identifying a mineral?
hardness
color
density
luster
How much temperature is needed to melt the rock and extract the metal from the ore?
less than 100 degrees Celsius
exactly 100 degrees Celsius
more than 900 degrees Celsius
more than 100 but less than 900°C
Where is the largest reservoir of fresh water on Earth stored?
aquifers
atmosphere
ocean
glaciers
How much percent of saline water is there in the Earth relative to all water as a whole?
70%
30%
96%
4%
What is 1% of Earth's water?
freshwater
frozen water
saltwater
rainwater
All of the following are ways that humans directly pollute water except?
Raising the temperature of bodies of water
Spilling oil and chemicals into the water
Water flowing off streets into storm sewers
Pumping sewage into water diverting water off of streets with storm sewers
These activities degrade the quality of soil except
mining
farming
contour plowing
construction and development
Which gas is produced at landfills?
methane
hexane
ethanol
nitrogen
The following processes can help manage wastes except
segregation at source
composting
inefficient collection
recycling and reusing
How is crop rotation done?
Same crops are planted in an area within the year.
Different crops are planted in an area within the year.
Crops are transferred to several areas within a year
No crops are planted in an area within a year.
