1) Which event happened FIRST in Earth's formation? a) Space rocks collided due to gravity b) The Earth became layered c) Earth became molten d) The dense elements sank and lighter elements rose to the surface 2) As you go farther down into the Earth, the temperature gets --?-- a) Hotter b) Cooler 3) Which statement about the Earth is TRUE? a) All Earth's layers have the same density b) The crust has the greatest density c) The inner core has the greatest density d) The outer core has the least density 4) Which Earth layer is solid and made of Iron and Nickel? a) Crust b) Mantle c) Outer core d) Inner core 5) Which Earth layer is liquid and made of Iron and Nickel? a) Crust b) Mantle c) Outer core d) Inner core 6) Which Earth layer is made of solid rock and broken into plates? a) Crust b) Mantle c) Outer core d) Inner core 7) Which Earth layer is a semi-solid and has convection currents? a) Crust b) Mantle c) Outer core d) Inner core 8) How do we know Earth's layers exist? a) Earthquake waves bend and bounce off each layer b) We have been to, and sampled, each of Earth's layers c) Tsunamis provide evidence that Earth's layers exist d) We don't really know, scientists just make their best guess 9) What causes earthquakes? a) Strong winds b) Movement of the crust's tectonic plates c) Large ocean waves called tsunamis d) Animals burrowing underground 10) Which earthquake wave is the fastest? a) Primary wave b) Secondary wave c) Surface wave 11) Which Earth layer is the crust? a) 1 b) 2 c) 3 d) 4 12) Which Earth layer is the mantle? a) 1 b) 2 c) 3 d) 4 13) Which Earth layer is the outer core? a) 1 b) 2 c) 3 d) 4 14) Which Earth layer is the inner core? a) 1 b) 2 c) 3 d) 4

Earths Interior Version B

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