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What happens over time to the materials filling a mold fossil that leads to the formation of a cast fossil?

• The materials freeze

• The materials dissolve

• The water evaporates, cementing the sediments together

• The materials expand

How does amber preserve organisms?

• By freezing them in ice.

• By soaking into their bones and preventing decay.

• By trapping them in sticky substances and hardening to preserve the organism.

• By covering them with leaves and soil.

What is the difference between relative and absolute age?

• Relative age determines the exact number of years ago a rock layer was formed, while absolute age compares the age of one rock layer to another

• Relative age compares the age of one rock layer to another, while absolute age determines the exact number of years ago a rock layer was formed

• Relative age is determined by the fossil content, while absolute age is determined by the rock type

• Relative age is used only in archaeology, while absolute age is used only in geology

What can the fossil record provide a clue about in addition to the history of life?

• The future climate changes.

• The environment at the time the organisms lived.

• The personal lives of the organisms.

• The technology used by ancient civilizations.

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NGSS.MS-LS4-1

What process occurs when water dissolves the original solid material of an organism and replaces it with minerals such as calcite, silica, pyrite, and hematite?

• Petrification

• Carbonization

• Replacement

• Permineralization

Which materials can be preserved through permineralization?

• Plastic, metal, and glass

• Bones, teeth, and shells

• Leaves, feathers, and skin

• Wood, paper, and cloth

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NGSS.MS-LS4-1

What is carbonization in the context of fossils?

• The process by which only animal substances decay, leaving behind carbon.

• The process by which all substances of plants and animals decay, except carbon.

• The hardening of carbon substances under high pressure over time.

• The transformation of carbon into diamonds within sedimentary rock.

In which types of organisms is the process of carbonization particularly common?

• Reptiles and birds

• Mammals and insects

• Plants and fish

• Amphibians and mollusks

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What has been found with mammoth bodies that were trapped in ice?

• Bones and teeth only

• Skin, hair, and even organs

• Feathers and beaks

• Shells and aquatic plants

How can you think of a mold fossil in a simple way?

• Like a cake pan.

• Like a photograph.

• Like a piece of jewelry.

• Like a time capsule.

Tags

NGSS.MS-LS4-1