Show:
Landforms
Slow Changes on Land
Fast Changes on Land
Fill in the Blank
Science Concepts
100
What is a feature of Earth's surface?
Landform
100
True or False: Weathering and erosion usually take place slowly.
True
100
What is a sudden movement in rocks that make up Earth's crust?
Earthquake
100
The land on the Great Plains is good for growing ____________________.
Crops
100
An architect decides to build her house on a plateau rather than on a sandy coastline. Why?
The plateau is firmer (more solid) than the coastline.
200
What is a wide, flat land?
Plain
200
What is the process that crumbles, cracks, and breaks down rocks?
Weathering
200
What is a violent storm with strong winds and heavy rain?
Hurricane
200
Rocks that are buried deep below Earth's surface can slowly rise into ________________________.
Mountains
200
The Rocky Mountains are far inland. Why are hurricanes unlikely to cause damage near the Rocky Mountains?
Hurricanes form over water and start to die out over land. Since the Rocky Mountains are far away from the coast, hurricanes would probably not reach that area.
300
What is a mound of wind blown sand?
Sand Dune
300
This occurs when weathered materials are carried away.
Erosion
300
What is a huge flow of water over land that is usually dry?
Flood
300
Water covers Earth in lakes, rivers, and ____________________.
Oceans
300
You hypothesize that rain will erode sand dunes more quickly than than it will erode sand covered with gravel. How would you test your hypothesis?
I would place sand on a tray and the same amount of sand with a layer of gravel on it. I would drip water over each side and observe the movement of the uncovered sand and the movement of the gravel-covered sand.
400
What is the highest landform; it has steep sides and a pointed top?
Mountain
400
Imagine that you are at the beach. The sun is shining and there is a gentle breeze. The waves are hitting the rocks on the beach. What is causing the erosion?
The waves
400
What is a violent, whirling wind that moves across the ground in a narrow path?
Tornado
400
Draining ____________________ may harm our water supply.
Wetlands
400
Aaron's family visited the coastline several times. During the summer, the wind and waves were calm. During the autumn, the wind increased. During the winter, the wind and waves got worse. What did Aaron probably observe about the sand dunes as the seasons changed?
They shifted more and more as the wind increased during autumn and winter. During the summer, they probably didn't shift very much.
500
What is a huge heap of moving ice?
Glacier
500
Water freezes inside of a rock. Tell how this will affect the rock.
Water takes up more space when it freezes. When water freezes inside of a rock, the rock may crack.
500
What is an opening in the surface of the Earth?
Volcano
500
Earthquakes can cause _______________________.
Landslides
500
Describe how a cave forms.
First, water runs through cracks in limestone. Then, chemicals in the water soften the limestone. Water washes away the weathered rock. A small opening forms. Finally, the process continues and a cave forms.