Grade 7 Planet Earth Unit Assessment

A scientist that studies rocks and minerals is called a

• geologist

• biologist

• seismologist

• physicist

Which part of the earth is made of solid iron and nickel, and is 7000 degrees Celsius?

• Inner core
• Outer core
• Mantle
• Crust

Which part of the Earth is liquid?

• Inner core
• Outer core
• Mantle
• Crust

Which part of the Earth is about 2/3 of the Earth's mass and is made of soft "plastic" rock? 

• Inner core
• Outer core
• Mantle
• Crust

The point of the surface of the earth where an earthquake starts is the

• seismic wave
• epicentre
• focus
• Richter scale

Lava is 

• solid rock above ground
• molten rock above ground
• molten rock below ground
• solid rock below ground

The Richter scale is used to measure

• Earthquake intensity
• volcano intensity
• hardness of rocks
• colour of minerals

Weathering can be caused by

• water
• ice
• wind
• all of the above

Igneous rocks are made from

• magma
• sediment
• glaciers
• erosion

A sedimentary rock was changed by heat and pressure underground. It is now a 

• still a sedimentary rock
• an igneous rock
• a metamorphic rock
• a hoodoo