Identify the FALSE statement. The Big Bang - ANSWERSis the explanation for how our Solar
System developed.
The earliest nebulae to form in the Universe were made almost entirely of - ANSWERShydrogen
and helium.
Identify the FALSE statement. Differentiation of large planetesimals and protoplanets -
ANSWERSwas inhibited by the presence of radioactive elements because their decay absorbs
heat from the surroundings.
Earth is round because - ANSWERSits interior rock is warm enough to flow slowly in response to
gravity.
The current theory that explains the formation of our Moon states that it - ANSWERSwas
formed by the collision of Earth with a Mars-sized protoplanet.
Which of the following groups of elements make up the most mass of the whole Earth? -
ANSWERSiron, oxygen, silicon, and magnesium
What was the first element to form after the Big Bang? - ANSWERShydrogen.
Our Solar System began as a ____. - ANSWERSa. second- or third-generation nebula
Which of the following groups of elements make up the most mass of the whole Earth? -
ANSWERSiron, oxygen, silicon, and magnesium
, Which of the following statements about the crust is FALSE? - ANSWERSThe crust is the top of
the mantle that has cooled and hardened.
Which type of chemical bond occurs electrons are able to "flow" between atoms? -
ANSWERSmetallic
Which of the following is a mineral? - ANSWERSsalt (NaCl)
Which of the following is NOT a mineral? - ANSWERSoil, because it's a liquid, not a solid
Which of the following statements is FALSE? Formation of table salt: - ANSWERSis an example of
solidification of a melt.
Calcite and aragonite minerals that constitute clam shells are examples of which method of
mineral formation? - ANSWERSbiomineralization
Which of the following statements is FALSE? Crystals: - ANSWERSare formed by the high-
temperature, extremely rapid process known as solid-state diffusion.
Graphite is: - ANSWERSthe "lead" in the pencil you write with.
Identify the FALSE statement. Silicates: - ANSWERSare a large category of minerals and include
the common minerals calcite and dolomite.
Which of the following groups of silicate minerals exhibits a single strong cleavage in one
direction? - ANSWERSsheet silicates
Plate tectonics theory took decades to be accepted because - ANSWERSWegener couldn't
explain how continents moved.