Continental Drift

Who first proposed the theory of continental drift'?

• Galileo
• Wegener
• Hess

What is the name of the supercontinent that formed from about 200-100  million years ago?

• Pangaea
• Laurasia

New crust is created by _____________________?

• magma from the mantle
• corma from the core

What is an underwater mountain range where new ocean floor is made?

• subduction
• mid-ocean ridge
• deep-sea trench

Which earth's layer is the lower part of the mantle?

• asthenosphere
• lithosphere
• crust

Which of Earth's layers convects?

• crust
• lithosphere
• asthenosphere

True or False: When liquid gets hot, it becomes less dense.

• true
• false

Convection currents are due to

• super hot core
• weather
• magnetic field

During convection currents, _____ dense material rises, and _______ dense material sinks.

• less, more
• more, less

What are the three types of Evidence that supports Alfred Wegener's Theory? 

• Fossils, Fish, and Land
• Sedimentary, Magma, and Climate
• Fossils, Land forms, and Climate
• Climate, Land forms, and Metamorphic rock