Soil Quiz 1

After squishing wet dirt between your fingers, you found the dirt to be gritty. It is most likely to consist of _______.

• air

• silt

• sand

• water

When a few drops of water was added to the soil, it was very sticky. What is the soil most likely to consist of _______.

• water

• silt

• clay

• sand

The dirt feels smooth like flour. It rolls in a ball and you can faintly see grains of dirt. The soil most likely consists of ________.

• clay

• water

• sand

• silt

Which of the following does NOT erode soil?

• plant roots

• wind

• water

• weather

What is most dirt composed of?

• water

• organic material

• minerals

• air

What is dirt LEAST composed of?

• air

• water

• minerals

• organic material

Water gets into rock during the day and freezes at night causing rock to break. This is an example of _____________?

• hydroponic change

• chemical change

• physical change

• aquaphobic change

A plant respires CO2 that reacts to water to creates an acid that breaks down rock. This is an example of _________?

• physical change

• metamorphic change

• paramecia change

• chemical change

The Grand Canyon's soil took millions of years to form. The soil is considered to be ________?

• mature soil

• desert sand

• organic material

• erode acidic

When looking at a cliff in the Grand Canyon, you noticed bands of different colors. This is called ________.

• canyon shift

• tectonic shift

• soil horizon

• inner core