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35 Cards in this Set

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Powerful forces inside a magma chamber causes a volcano to do what?
erupt
When is magma called lava?
When it reaches the Earth's surface
What does an earthquake cause?
The shaking and sliding of the Earth's surface
True or False. Most earthquakes and volcanoes happen in the same place.
True
Why is driving during an earthquake dangerous?
Because roads and bridges can be destroyed
Why should you stay away from windows during an earthquake?
To avoid breaking glass
Name a few words that describe the shapes of landforms
round, flat and high
What is the movement of weathered rocks and soil called?
Erosion
What does animal waste increase in the soil?
Nutrients
How do farmers keep soil in place?
By using certain kinds of crops
What force does not cause erosion?
electricity
What happens to a volcano as more lava erupts and spreads?
The volcano get taller and taller
How is most soil held in place?
By plant and tree roots
What change does not happen quickly, earthquakes, weathering, or volcanoes erupting?
weathering
What is a mountain with a vent at the top called?
A volcano
A low area between mountains are: valley, bay or lake?
valley
A part of an ocean or lake is: valley, bay or plateau?
bay
A high place with a pointed top is: lake, mountain, or plain?
mountain
A large body of water surrounded by land is: valley, plateau or lake?
lake
A high place with a flat top is: plateau, plain or bay?
plateau
A large, flat area on a lowland is: valley, mountain or plain?
plain
A place where the land meets the ocean is: river, hill or coast?
coast
A huge mass of moving ice is: river, glacier, or coast?
glacier
A moving stream of water flowing into a lake or ocean is: hill, cliff or river?
river
A steep wall of rock or soil: coast, glacier, or cliff?
cliff
A huge body of salt water is: river, ocean, or coast?
ocean
A high place with a rounded top is: glacier, cliff or hill?
hill
What are landforms shaped by?
force
What holds soil on hillsides: animals, plants, or trees?
plants
What breaks up sidewalks: animals, plants, or trees
trees
What adds nutrients to soil: animals, plants, or trees?
animals
What cracks and moves boulders: animals, plants, or trees?
trees
What acts as a shield against wind: animals, plants, or trees?
trees
What helps to mix air and water with soil: animals, plants, or trees?
animals
Science
Chapter 1 Unit C
3rd Grade
Science
Chapter 1 Unit C
3rd Grade