Show:
Water
Plate Tectonics
Climate Change
Natural Disasters
Astronomy
100
What percent of the Earth's surface is covered with water?
70%
100
What drives or moves the Earth's plates around the surface of the Earth.
convection currents
100
What is greenhouse gas is released when burning fossil fuels?
CO2
100
A natural disaster caused by many months of little to no rainfall?
drought
100
How many stars are in our solar system?
one (the sun)
200
What two elements is water made of?
Hydrogen and Oxygen
200
Who was the scientist who came up with the theory of Continental Drift?
Alfred Wegener
200
Name two fossil fuels:
coal, oil, gas
200
Disaster in which large amounts of snow flow down a mountain at a rapid speed.
Avalanche
200
What is the difference between revolution and rotation?
yearly and daily motion
300
What is the part of the water cycle in which water vapor turns back into a liquid?
Condensation
300
What is the name of the supercontinent that is believed to exist 200 million years ago?
Pangaea
300
What is the name of the effect in which CO2 in the atmosphere traps heat?
The greenhouse effect
300
What natural disaster is common in the central part of the US when dry cold air meet hot humid air?
tornado
300
Why does Mercury have a shorter year than Earth? (only 88 days)
It is moving faster and has a shorter orbit
400
What is the name of the attraction between water molecules?
cohesion
400
What landform is caused at a subduction zone?
Volcano
400
What is at risk if the glaciers continue to melt?
Sea level rise, coastal flooding, loss of land
400
What 2 events can be the cause of a tsunami wave?
earthquake and landslide
400
Give two reasons that explain why the Earth has seasons:
It has a tilted axis, it revolves around the sun
500
What is the measure of how cloudy unfiltered water is?
turbidity
500
What is the name of the plate boundary which separates the North American Plate and the Eurasian Plate?
Mid-Atlantic Ridge
500
What is a process of plants that removes carbon from the air?
Photosynthesis
500
What is the name for hot ash, gases, and rocks flowing down the side of a volcano at great speeds?
a pyroclastic flow
500
What is the phase of the moon during a solar eclipse?
New moon