Earth Structure

Magma that flows out onto the surface of the earth is

• magma

• mantle

• lava

• sediment

During science class, a teacher explains that the samples the students are studying are made of two or more minerals. What are the students studying?

• gases

• rocks

• elements

• molecules

In which of rock are fossils most likely to be found?

• Metamorphic

• Minerals

• Sedimentary

• Igneous

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which process causes the build up of sediment at the end of the river?

• Temperature changes cause the river to deposit sediment.

• The water current changes direction and breaks down the sediment.

• Deposition of the soil that was weathered and eroded from the river bank.

• Chemical weathering causes the river to break down and erode sediment.

Use the diagram below to answer the following question. The diagram above is an example of which the following natural processes?

• erosion

• deposition

• physical weathering

• chemical weathering

Tags

NGSS.MS-ESS2-2

While visiting a cave within a national park, Ava notices that some of the rock formations have deep grooves and are less detailed than others. The park ranger explains that the rock formations outside the cave entrance are more weathered than those deeper inside. Which statement best explains why the rock formations outside the cave entrance are more weathered?

• Physical weathering by the wind has blown sand against the formations, wearing them down.

• Chemical weathering by animals moving through the cave has broken pieces off of the formations.

• Slightly acidic rainwater has dissolved the rock formations over time through the process of chemical weathering.

• Tree roots have grown into cracks in the formations, causing them to break apart through the process of physical weathering.

What landform is being described?

• lakes

• aquifer

• caverns

• sinkhole

Tags

NGSS.MS-ESS2-2

A scientist is studying the canyon in the image below.

They observed that the rocks at the bottom of the canyon are smooth and rounded. Which

process most likely caused the rocks to become smooth and rounded?

• erosion

• deposition

• physical weathering

• chemical weathering

Tags

NGSS.MS-ESS2-2

Which layer of Earth is liquid metal?

• Outer Core

• Mantle

• Inner Core

• Asthenosphere

Which is the hottest layer and has the most pressure on it?

• Crust

• Mantle

• Outer Core

• Inner core