U4L1 Review

What is the state of the Earth's outer core?

• Solid

• Liquid

• Gas

• Plasma

The Earth's inner core is made of metals like (a)   and (b)   .

• Nickel, Iron
• Copper, Zinc
• Silver, Gold
• Lead, Tin

What technology can give scientists evidence about plate movement, earthquakes, and volcanoes?

• Seismographs

• Coring Drills

• Seismometers

• Earthquakes

Seismometers are similar to seismographs, but record movement ______ instead of on paper.

• Digitally

• Manually

• Mechanically

• Automatically

Which best describes SUDDEN (Fast) change?

• Volcano Eruption

• Erosion

• Run-off

• Landslides

Continental Crust is usually ​ (a)   than Oceanic Crust due to the ​ (b)   pressure of water in oceans.

• thicker
• thinner
• high
• low

Drills can be used to take samples to different depths and examine layers within Earth’s ​ (a)  

• Crust
• Soil
• Core
• Mantle

Which layer has convection currents and influences layers above it?

• Inner Core
• Mantle
• Outer Core
• Crust

What is the primary cause of tectonic plate movement?

• Ocean currents

• Convection currents in the mantle

• Wind currents

• Solar radiation

What is the inner core made of? Check all correct answers.

• Iron

• Magnesium

• Nickle

• Diamonds