rocks & minerals ks3

What type of rock forms from cementation and compaction close to or on earth's surface?

• Sedimentary
• Metamorphic
• Igneous

What type of rock forms from heat and pressure inside earth's surface?

• Sedimentary
• Metamorphic
• Igneous

What type of rock forms from lava or magma that has cooled at or near earth's surface?

• Sedimentary
• Metamorphic
• Igneous

What is the geological process by which rocks are formed, destroyed, or altered?

• continental drift
• plate tectonics
• water cycle
• rock cycle

Fossils are sometimes found in which type of rock?  (Fossils can only survive this rock's process of formation.)

• intrusive igneous
• extrusive igneous
• metamorphic
• sedimentary

Fossils of the same animal are found on two different continents.  Which of the following can be inferred based on this finding?

• The climate has changed.
• The animals swam across the ocean.
• The continents have drifted apart.
• The wind carried the animals across the ocean.

When buried sediments are subjected to pressure, the mineral grains are squeezed together. This process is called...

• deposition

• weathering

• compaction

• cementation

Which processes change magma into igneous rock?

• weathering and erosion
• heat and pressure
• compaction and cementation
• cooling and crystallization

Which statement is true about rocks?

• Magma is made of solid rock.
• Rocks are made of one or more minerals.
• Crystals are made of rocks.
• Minerals are made of one or more rocks.

Which process causes sand grains to stick together to form sandstone?

• cementation
• abrasion
• combustion
• erosion