Grade 6 Science Unit 1

Front

One of Earth's layers is solid and extremely hot, while another is liquid and surrounds it. This statement best answers which question?

Back

How does the inner core compare to the outer core?

Front

Which type of crust forms the continents, and which type forms the ocean floors?

Back

continental, oceanic

Front

Millions of years ago, all the continents were joined together as one landmass. What is the name of this ancient supercontinent?

Back

Pangaea

Front

Which scientist proposed the idea that continents were once joined together and have since drifted apart? This idea is called ______ and helps explain the distribution of similar animal fossils across different continents.

Back

Wegener, continental drift

Front

What is the primary solid material found in Earth's lithosphere?

Back

rock

Front

Which layer of Earth is described by the following characteristics:
* Made mostly of iron and nickel
* Has both a solid inner part and a liquid outer part
* Experiences the highest temperatures of all layers

Which layer is this?

Back

the core because it consists of a solid inner core and a liquid outer core made of iron and nickel.

Front

What is the name of the supercontinent that scientists believe once included all of Earth's land?

Back

Pangaea

Front

What causes tectonic plates to move?

Back

Convection currents in Earth's mantle

Front

What can occur when plates slide past or alongside one another?

Back

Earthquake

Front

Possible result of plates moving along a transform boundary?

Back

earthquakes