Underground Caves Quiz – 7th Grade Version

How do caves usually begin to form?

• From volcanoes suddenly erupting

• Slowly, when water wears away rock

• When earthquakes shake the ground

• From fast changes on the surface

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What happens when water touches certain underground rocks?

• The rock breaks down slowly through a chemical process

• The rock is pushed together

• The rock heats up

• The wind changes the rock

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What does “underground cavity” mean?

• It’s always dark

• It’s an empty space in rock

• It stays the same temperature

• Nothing lives there

What is the most important part of how a cave forms?

• The wind

• How hot or cold it is outside

• The kind of rock and how water affects it

• The kind of dirt above the cave

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What makes a cave passage different from a simple hole?

• It has an opening and an exit

• It has more twists and paths

• It’s much bigger

• It’s more important to science

What does “range in size” mean about caves?

• All caves are the same size

• Caves can be many different sizes

• Caves are measured the same

• Caves only form in certain places

What science skill helps the most when studying caves?

• Studying stars

• Studying rocks and landforms

• Studying the weather

• Studying plants

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How are underground caves usually made?

• Fast changes in nature

• Slow changes over a long time

• People digging them

• Animals making them

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Why are caves considered complex (complicated)?

• They are simple places

• They are detailed and full of connections

• They are made by chance

• They aren’t that interesting

What does water mostly do to rock in caves?

• Wears it down by force

• Breaks it down through chemical changes

• Keeps it warm

• Carries away dirt