Front

When fossilized seashells are found on mountaintops, it shows that the mountain was once...

Back

covered by water

Front

Convection happens when

Back

currents are caused by the motion of heated material

Front

Which of the following is TRUE about Earth's crust? Options: It is a system of large masses called plates that slowly move together or apart, It includes the continents but not the ocean floor, It is a changing, moving surface with the same thickness everywhere, It is a layer of solid rock that remains the same throughout time

Back

It is a system of large masses called plates that slowly move together or apart

Front

Based on the map of the west coast, what do the arrows represent?

Back

movement of tectonic plates

Front

When plates collide, one often moves under the other plate. The rising magma from this may produce...

Back

volcanoes

Front

Scientists think that moving tectonic plates is caused by...

Back

Convection currents in the mantle

Front

Which are common at plate boundaries?

Back

earthquakes & volcanoes

Front

Which names the layers of the Earth in order FROM hottest to coldest?

Back

inner core, outer core, mantle, crust

Front

What is evidence for sea-floor spreading?

Back

all of these

Front

Matter is made of particles - what are the smallest particles called?

Back

atoms