Earth Science: Unit 3
Which of the following is a source of heat in Earth's interior? Select 3.
Which of the following statements summarizes how the formation of the solar system was similar to the differentiation of Earth into layers?
When S-waves reach the outer core of the Earth they stop and when P-waves reach the outer core of the Earth they slow down. What is the reason for this speed change?
There is a boundary between the crust and the mantle that was discovered by the data from seismic waves. This boundary marks a change in composition, which in turn affects density. The speed of P waves and S waves increases at this boundary. Which statement best describes the difference between the crust and the mantle?
Why are meteorites important to the study of the Earth's interior?
In the early 1900's, a hypothesis was introduced that proposed a single large landmass broke into smaller landmasses and formed and continents, which drifted in their present locations. What is the name of this hypothesis?
Where have great amounts of volcanic activity been found to concentrate?
Select TWO of the following discoveries that are evidence supporting the idea of continental drift? You need to find two that are evidence of continental drift.
We saw pictures where all the continents were joined together to make one huge continent. What explanation best summarizes the hypothesis shown in the figure?
Fossils of the Cynonathus have been discovered on both South America and Africa. How does this evidence help to support the hypothesis of continental drift?
The Atlas Mountains in Africa are part of the same mountain chain as the Appalachian Mountains in North America, indicating that they were once connected. How does this evidence relate to the theory of plate tectonics?
which of the following explains why tectonic plates move?
A subduction zone is a place where a more dense plate (oceanic) and a less dense plate (continental) collide and the more dense plate goes underneath the less dense plate. What would you call this boundary and what landform is likely to occur here?
Why do folded mountain belts sometimes form at convergent plate boundaries?
If we were drawing arrows for a pair of convergent tectonic plates which of the following would be the way we would draw the arrows?
Which feature does NOT result from seismic activity?
Which two landforms are caused by convergent plate boundaries?
What two processes occur at mid-ocean ridges? Check two.