Rocks, Minerals, and Soils

_______________ in soil has many nutrients and comes from the decayed remains of plants and animals.

• Humus

• Clay

• Dirt

• Sand

What is the only thing on earth that can scratch a diamond?

• a bulldozer

• another diamond

• a fingernail

• a nail

What is it called when we say a rock is shiny?

• color

• hardness

• luster

• streak

Which layer of soil contains large rocks that have not been weathered yet?

• topsoil

• subsoil

• dirt

• bedrock

Which kind of rock is formed from heat and pressure?

• metamorphic rock

• igneous rock

• sedimentary rock

• rock and roll

How does soil help the trees?

• it grows leaves for them

• it gives nutrients to the trees

• it blows in the wind

• it catches dead leaves

Which rocks come from volcanoes?

• metamorphic rocks

• sedimentary rocks

• igneous rocks

• bedrocks

which layer of soil is improved when we put out compost?

• bedrock

• subsoil

• dirt

• topsoil

Which soil has small grains, holds lots of water, and is very sticky when wet?

• clay

• sand

• silt

• dirt

All rocks are made of ____________________.

• dirt

• minerals

• soil

• igneous