Physical Layers

Test Description: Grades 6-8 Earth Science

Instructions: Answer all questions to get your test result.

1) The ___ layering system is based on composition - meaning what substances each layer is made of.

2) The ___ layering system is based on properties - meaning how the materials in each layer behave (ex: states of matter).

3) The ___ is the PHYSICAL layer of solid, brittle rock that breaks and cracks easily.

4) The ___ is the PHYSICAL layer of semi-solid, taffy-like, soft weak rock that flows very slowly.

5) The ___ is the PHYSICAL layer of solid, strong rock.

6) The ___ is the PHYSICAL layer of melted, liquid metal.

7) The ___ is the PHYSICAL layer that is a ball of solid metal.

8) Which of the following shows the physical layers in order - beginning from the surface?

9) Scientists know about Earth's physical layers by studying ___.

10) The motion of the liquid metal outer core around the solid metal inner core generates Earth's ___.

11) The rock in the lithosphere is a ___.

12) The rock in the asthenosphere is a ___.

13) The metal in the outer core is a ___.

14) The metal in the inner core is a ___.

15) ___ crust is the thinner, heavier type of crust that makes up the seafloor.

16) ___ crust is the thicker, lightweight type of crust that makes up the land.

17) Earth's magnetic field protects our ___ from the Sun's solar wind.

18) A tectonic plate is a HUGE piece of the ___.


*select an answer for all questions

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