Chemistry and Earth Science Midterm Showdown

• Regular round: write your answer on your board, hide your answer, reveal your answer when told. Each right answer is 1 pt.

• Speed round: write your answer down and put your board up as soon as you have it. First four teams get 2 pts all other teams get 0 pts.

• Super Speed Round: write your answer down and put your board up as soon as you have it. First four teams get 4 pts, last team has 1 point taken away, all other teams get 0pts.

Regular Round

• What type of boundary is E? What is one feature you would find at E?

• Divergent boundary: volcano, rift valley, mid ocean ridge

Speed Round• Energy that comes from the heat energy inside the Earth.• Geothermal Energy

Regular Round• Rock that forms when lava cools and hardens outside the

crust.• Extrusive igneous rock

Regular Round

• What type of boundary is G? What is one feature you would find at G?

• Convergent Boundary: volcano, trench

Regular Round

Put these rock layers in order from Oldest to youngest.

E, D, C, F, B, Fault, A

Super Speed Round• Youngest type of crust, typically the thinnest but the most

dense, constantly being destroyed and remade.• Oceanic Crust

Speed Round• Liquid Densities:Water 1.0 g/mLMolasses 1.4 g/mLGlycerol 1.3 g/mLOil 0.9 g/mL

• Will glycerol sink or float in molasses?• Float

Speed Round• Liquid Densities:Water 1.0 g/mLMolasses 1.4 g/mLGlycerol 1.3 g/mLOil 0.9 g/mL

• Water has a density of 1.0 g/mL. Will glycerol sink or float in water?• Sink

Regular Round

• Explain what causes volcanism at D• The oceanic plate subducts and melts back into magma. The

magma rises through the crust and erupts.

Super Speed Round• Rock created as sediments are compacted and cemented

together.• Sedimentary rock

Regular Round• During what star stage are the heaviest elements made?

• Super novas, because of the energy of the explosion.

Super Speed Round• Rock created when existing rock is changed by heat or

pressure.• Metamorphic rock

Regular round• Name one of the sources of heat for the Earth.• Particle Impact• Gravitational Energy• Radioactive Decay

Regular Round• Liquid Densities:Water 1.0 g/mLMolasses 1.4 g/mLGlycerol 1.3 g/mLOil 0.9 g/mL

Draw a what it would look like if these three were put in a graduated cylinder. Label each layer.

Regular Round• Define the Law of Conservation of Energy• Energy is not created or destroyed it just changes form.

Speed Round• During what star stage does a star fuse hydrogen into helium?

• Main Sequence

Regular Round• Rock that forms when magma cools and hardens inside the

Earth• Intrusive igneous rock

Super Speed Round• What is the process called by which two lighter elements

collide and form one new heavier element.

• Fusion

Regular Round

• What is the geologic feature at D?• Trench

Regular Round• Define the Law of Conservation of mass• Matter is not created or destroyed it just changes form. Total

matter before a reaction is the same as the total matter after a reaction.

Regular Round

• What is the geologic feature at E?• Ocean ridge, volcano, rift valley

Speed Round• Circular movements of magma created by the heating of the

mantle by the outer core. They are what cause the tectonic plates to move.

• Convection Currents

Regular Round

• Explain what causes volcanism at E• Plates are pulled apart creating cracks where magma rises.

Speed Round• Which rocks are the best for radiometric dating?

• Igneous, because they usually have only parent isotopes when they are made.