Grade 4 Science Quiz

What are minerals?

• Naturally occurring organic substances

• Living organisms

• Man-made materials

• Naturally occurring inorganic substances

Which of the following is a common mineral?

• Wood

• Water

• Gold

• Air

What property of minerals describes how they reflect light?

• Streak

• Hardness

• Luster

• Color

What is the streak of mineral?

• The color of the mineral in powdered form

• The mineral's hardness

• The mineral's reflection of light

• The mineral's weight

How do geologists classify rocks?

• By their size

• By their color

• By how they form

• By their weight

What type of rock forms when magma cools?

• Sedimentary rock

• Igneous rock

• Metamorphic rock

• Humus

What is magma?

• Solid rock

• A metal

• A type of soil

• Molten rock beneath the Earth's surface

How do sedimentary rocks form?

• From molten rock

• From heat and pressure

• From layers of sediment compacting

• From living organisms

What is humus?

• Solid rock

• Decomposing organic matter

• A type of mineral

• A rock formation

What is weathering?

• The process of rocks melting

• The formation of new rocks

• The movement of sediment

• The breaking down of rocks into smaller pieces