7th grade earth and rocks

Example

In the path from igneous to sedimentary rock, what comes straight after "weathering breaks it into pieces"?

1. igneous rock at the surface → weathering breaks it into pieces → erosion carries the sediment to the sea → layers of sediment build up → compaction and cementation form sedimentary rock
2. So the answer is: erosion carries the sediment to the sea

Answer: erosion carries the sediment to the sea

Example

Who first proposed that the continents drift?

1. Wegener's continental drift (1912) was later explained by plate tectonics.
2. So the answer is: Alfred Wegener

Answer: Alfred Wegener

Example

Which type of plate boundary is this: the Andes and their volcanoes?

1. At convergent boundaries plates collide: one may sink (subduct), or mountains form.
2. So the answer is: convergent (moving together)

Answer: convergent (moving together)

Example

On the magnitude scale, each whole number up means the ground shaking (wave amplitude) is 10 times larger. How many times larger is the shaking in a magnitude 8 earthquake than in a magnitude 6?

1. 8 − 6 = 2
2. 10^2 = 100
3. So the answer is: 100

Answer: 100