Science Grade 2 Vocab review - Changing Surface of the Earth

1/30/2019 12:00:00 AM

10 questions extracted from Mobymax (Science, Grade 2), to help you review some basic vocabulary about the changing Surface of the Earth. To learn more about this topic, get a Mobymax learning account (by going to http://contuhoc.com/mobymax).

Weathering is __________.

when rocks in Earth’s crust get bigger over time
when rocks in Earth’s crust break down into smaller pieces over time
when water, wind, or gravity moves soil and rocks
when rain makes new rocks

Erosion is _____.

when water, wind, or gravity moves soil and rocks
when farmers tear down trees
when humans break rocks apart
when rocks in Earth’s crust get bigger over time

Read the sentences below:

"Pieces of rock chip off mountains during high winds. Sometimes these winds blow the rocks away."

The first sentence describes __________. The second sentence describes __________.

erosion; weathering
erosion; erosion
weathering; erosion
weathering; weathering

Which of the following causes weathering?

freezing water
flowing rivers
wind
all of the above

A local farmer wants to know how he can help stop erosion on a hill in his farm. What would help the most?

running water down the hill
planting strong trees on the hill
replacing the crops with grass
getting rid of all the crops

An earthquake is __________.

a hole on Earth’s surface
when lava comes out of cracks in the Earth
when mud and soil slide down hills
when Earth’s surface shakes back and forth

Which of these can an earthquake cause? Check all that are true.

large pits of lava
cracks in the ground
landslides
large waves

A volcano is __________.

when rock melts on Earth’s surface and spreads out
when a new island is made
a large explosion
when melted rock moves from deep underground to Earth’s surface

What can volcanoes do that earthquakes cannot do? Check all that are true.

make a mountain
make an island
change the Earth’s surface
make new rock

Which layer is Earth’s crust?