Earth's Materials

Pieces of rock are called____________.

• fossils
• silt
• sediment
• materials

The materials that rocks are made of are called______________.

• minerals
• sediment
• soil
• humus

The remains of a living thing that lived long ago which have turned to rock are called____________.

• sediment
• rock
• soil
• fossils

Melted rock is called ______________.

• silt
• magma
• humus
• soil

Soft soil that feels like powder is called ______________.

• silt
• humus
• sand
• clay

What can be classified based on the content, texture, or grain size?

• fossils
• soil
• minerals
• sediment

Which type of rock is most likely to have fossils?

• igneous rock
• sedimentary rock
• magma
• metamorphic rock

Which type of soil is light in color, has large grains, and holds little water?

• humus
• clay
• silt
• sand

Which type of soil is most often used to plant house plants?

• clay
• humus
• sand
• silt

What will happen if you add an acid solution such as vinegar to a mineral such as calcite?

• nothing
• mineral will split into layers
• mineral will change colors
• mineral will bubble