Changing Earth Flashcards
Places where molten (extremely hot, liquid) rock emerges or erupts through the surface of Earth are called?
volcanoes
What is another name for a volcanic landslide?
Lahar
While lahars move quickly, what is it called when the lava moves very quickly downhill and continues to move even on flat land?
Pyroclastic Flow
A repeating and periodic disturbance that travels through a substance from one location to another is called what?
a wave
What is the name of a powerful ocean wave, often caused by earthquakes or volcanoes under the sea, that can travel very fast and cause a lot of damage when it hits the shore?
Tsunami
Water that is not absorbed by the ground and often flows downhill taking dirt with it, is called…
runoff
Another word for danger or risk is…
a hazard
The wearing away of rocks and other deposits on the earth’s surface by the action of water, ice, wind, etc and moving it from one location to another is known as…
erosion
The breaking down or dissolving of rocks and minerals on the surface of Earth by water, ice, acids, salts, plants, animals and changes in temperature is called?
weathering
The laying down of sediment carried by wind, flowing water, the sea or ice is called…
Deposition
A requirement for an invention or project is called…
Criteria
What is a large body of ice moving slowly down a slope or valley or spreading outward on a land surface?
a glacier
Natural processes that happen on earth are called…
earth processes
A naturally formed feature of the earth is called…
a landform
What are formed when tiny pieces of rock, sand, and even dead plants and animals settle and get pressed together over long periods, forming new layers?
rock layers
What is a really, really long story about how Earth and its rocks, mountains, and oceans changed over billions of years?
geological history
Examples of earth processes are…
wind, water, ice, earthquakes, volcanoes, landslides, tsunamis
Examples of landforms are…
mountains, plains, plateaus, valleys, bays peninsulas, sand dunes
