1
What layer of the Earth do we live on: crust, mantle, or core?
crust
Which gas is most abundant in Earth’s atmosphere?
nitrogen
What scale is commonly used to measure the strength of earthquakes?
ritcher scale
About how much of Earth’s surface is covered by water: 50%, 70%, or 90%?
70%
What do we call the large pieces of Earth’s crust that move slowly over the mantle?
tectonic plates
What is the supercontinent called that existed about 300 million years ago?
pangaea
What is the name of the process by which liquid water becomes water vapor?
evaporation
What is the name for molten rock beneath Earth’s surface?
magma
What is the main cause of earthquakes?
movement of tectonic plates
Which layer of the Earth is the hottest: crust, mantle, or core?
core
What do we call the cycle that describes how water moves through oceans, air, and land?
water cycle
What do we call the shaking of the ground caused by sudden movement of rocks underground?
earthquake
What is magma called when it reaches the Earth’s surface?
lava
What do we call a mountain that forms when lava and ash build up around an opening in the Earth’s crust?
volcano
What is the main source of energy that drives the water cycle?
the sun
What is the name for the remains or traces of ancient plants and animals preserved in rock?
fossils