Science 1

What is the hypothesis that continents have slowly moved called?

• Seafloor spreading

• Tectonic plates

• Continental drift

• Convection currents

What causes mid ocean ridges?

• Seafloor spreading

• Subduction zones

• Transform boundaries

• Convection currents

What was the missing piece of evidence Alfred Wegener lacked in order to prove his theory of continental drift?

• Matching fossils on different continents

• The shapes of the coastlines of South America and Africa fitting together

• Types of rocks and mountain ranges looking similar in different places

• A mechanism for how the continents moved

What is the driving force of tectonic plates related to?

• Earth's core

• Earth's crust

• Earth's mantle

• Earth's atmosphere

What evidence did Alfred Wegener use to support his theory of continental drift?

• The Puzzle Piece Continents

• Fossils Found Far Away

• Rocks and Mountains Match

• Climate Cues from the Past

• All of the above

What type of plate boundary is occurring at a mid ocean ridge?

• Convergent plate boundary

• Divergent plate boundary

• Transform plate boundary

• Subduction zone

Which of the following is NOT a piece of evidence for continental drift?

• Matching fossils on different continents

• The shapes of the coastlines of South America and Africa fitting together

• Types of rocks and mountain ranges looking similar in different places

• Seafloor spreading

What is the process that occurs at a divergent plate boundary?

• Plates collide and mountains are formed

• Plates slide past each other, causing earthquakes

• Plates move apart, creating new crust

• Plates are forced under each other, forming trenches

What is the name of the layer of Earth where convection currents occur?

• Crust

• Mantle

• Core

• Lithosphere

Which of the following is NOT a piece of evidence for seafloor spreading?

• Age of the rocks on the ocean floor

• Magnetic stripes on the ocean floor

• Mid ocean ridges

• Matching fossils on different continents