Rocks and Rock Cycling

What is meant by the fixed composition of a mineral?

• It comes from one or more elements made by Earth

• It can change its elements anytime

• It is always made by humans

• It is always a gas

Which of the following is NOT a property of minerals?

• They are always man-made

• They are solid

• They have a crystal form

• They are inorganic

Which of the following is true about minerals?

• They are formed by geological processes naturally

• They are always created in laboratories

• They are always found in animals

• They are always gases

What is texture in rocks based on?

• The size and shape of the grains

• The color of the rock

• The temperature of the rock

• The smell of the rock

If a rock is made up of only one mineral, what can be said about its mineral composition?

• It contains a single mineral

• It contains many minerals

• It is always coarse-grained

• It is always fine-grained

Why do geologists observe the color of a rock?

• To get clues about its mineral composition

• To measure its weight

• To determine its age

• To find its location

Which of the following statements is true about fine-grained rocks?

• Grains can only be seen with a microscope

• Grains are large and visible

• They are always black

• They are always heavy

What does the term “coarse-grained” refer to in rocks?

• Large, easy-to-see grains

• Small, hard-to-see grains

• Smooth surface

• Shiny appearance

What does the term “fine-grained” refer to in rocks?

• Small grains visible only with a microscope

• Large, visible grains

• Rough surface

• Heavy weight

Which of the following is a clue to a rock’s mineral composition?

• Its color

• Its weight

• Its temperature

• Its smell