Earth's Systems Pre-Unit Test 2nd

Fill in the blank:

The Earth is the _______ planet from the sun.

• first (1st)

• second (2nd)

• third (3rd)

• sixth (6th)

What is the Earth made up of?

• sun

• land and water

• moon

• stars

A dense ball of solid iron and nickel.

• crust
• inner core
• mantle 
• outer core

What is the top layer of the Earth's surface called? 

• Mantle
• Innercore
• Outercore
• Crust

A _______________ is a sudden shaking of the ground which causes cracks in the Earth's surface.

• volcano

• hurricane

• earthquake

A _____________ is an opening in Earth's surface where lava, gases, and bits of rock erupt.

• volcano

• earthquake

• landslide

What is the outermost layer of earth?

• inner core
• outer core
• mantle
• crust

A _____________is when rocks, soil, and mud slide down a hill, mountain or other slope.

• volcano

• landslide

• earthquake

What is the thickest layer of the Earth?

• the crust
• the mantle
• the outer core
• the inner core

A ______________ is a tropical storm with powerful winds and heavy rain.

• tornado

• earthquake

• hurricane