Review test Earth's Surfaces

A student found a sample of a solid material that was gray, shiny, and made of all the same material.  What category does this sample best fit?

• sedimentary
• igneous
• metamorphic
• mineral

Obsidian, granite, and basalt are rocks formed from molten rock that has been cooled.  What kind of rock are they?

• sedimentary
• fossils
• igneous
• metamorphic

What is the movement of weathered material called?

• ice wedging
• erosion
• weathering
• evaporation

What direction does erosion move Earth materials?

• towards the mountains
• into the cities
• downward
• upward

A home has a sloping back yard.  The family puts in retaining walls made of large boulders part way down the hill.  Why?

• they look nice
• to keep the soil in place
• to improve the view
• to keep the house in place

The Missouri state fossil is?

• gastropod
• crinoid
• trilobite
• amber

If plants are not growing well in soil what is one way to fix it?

• take away air
• take particles away
• add subsoil
• add nutrients

What gives topsoil its dark color?

• more water
• special rock particles
• decaying living things
• large rock particles

Fossils are almost always found in which type of rock?

• igneous
• sedimentary
  
• basalt
• metamorphic

 Which of the following is NOT a way that rock is broken down and weathered?

• freezing and thawing
• plant roots
• heat expansion
• carried away by wind