Rocks and Dirt

Look at the following mineral identification chart.

Which of the following would NOT help you classify a mineral?

• Hardness

• Color

• Streak

• Weight

______________________________ can be considered to be mixtures of minerals.

• Energy

• Soil

• Coal

• Diamond

 The soil layer that contains the most organic material is

• Topsoil

• Subsoil

• Bedrock

• regolith

Soils are the same from place to place.

• True

• False

Which object is composed mostly of minerals?

• Plastic Fork

• Rock

• Grasshopper

• Tree Branch

a mixture of weathered rock, organic matter, water, and air that evolves over time and supports the growth of plant life

• Silt

• Clay

• Sand

• Soil

Quartz is a mineral; granite is

• Mineral

• Rock

• Glass

• Mica

What are the 3 layers of soil (in order from top to bottom) that we have learned?

• Subsoil, Bedrock, Topsoil

• Topsoil, Subsoil, Bedrock

• Topsoil, Humus, Tundra

Which type of soil holds water the best?

• sand

• 
  clay

• silt

What do you call the process where over many years, rocks are broken down by weather, water, and living things?

• weathering

• precipitation

• evaportation