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Science Explainer: All about Earth's core

Last updated 11 months ago

3 questions

Note from the author:

Read the passage All about Earth's core. Then answer the questions below.

Instructions

Read the passage All about Earth's core. Then answer the questions below.

Required

1

Required

2

Required

1

Question 1

1.

Drag each answer choice into the correct space. Not all answer choices will be used.

Earth’s ___________________ helps life on the planet to survive. Without it, ________________ would strip the Earth of its ________________.

Other Answer Choices:

solar winds

magnetic field

seismic waves

ozone layer

ultraviolet radiation

Question 2

2.

Drag each statement into the correct box to indicate whether it describes a characteristic of the Earth's outer or inner core.

grows at a rate of about one millimeter per year
pushes into the mantle around subduction zones
contains dissolved elements such as gold, platinum, and cobalt
creates the Earth's magnetic field from its moving liquid metal
is mostly made from very hot solid iron at very high pressures

Outer core
Inner core

Question 3

3.

Which factors do geoscientists use to help them learn about the Earth's core? Select three correct answers.

seismic waves

magnets

planetary motion

lasers

computer models