Fossils - unit 4

What are fossils

• Living organisms found in rocks

• Preserved remains or evidence of ancient living things.

• Rocks that have undergrown weathering

• Materials found in the ocean

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which type of living things are most likely to become fossils?

• Organisms with hard parts

• Organisms with soft parts

• Microscopic organisms

• Aquatic organisms

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NGSS.MS-LS4-1

What can fossils be used to find?

• Patterns of weathering in rocks

• Patterns in changes in the level of complexity of anatomical structures in organisms.

• Types of minerals in ground water

• Types of vegetation in an area

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What is preserved remains fossils preservation?

• Organism is buried and carbon is left behind.

• Organism is completely enclosed in some material.

• Impression in a rock left by an ancient organism.

• Fossils copy made when mold is filled with sediment.

What are carbon films?

• A mold filled with sediment or material deposits.

• Fossiled carbon outline of an organism or part of an organism.

• Copies of organisms formed by material replacement.

• Preserved evidence of the activity of an organism.

What is material replacement?

• The impression left by an ancient organism in a rock.

• Fossil copy made when a mold is filled with sediment.

• Copy of organisms formed when materials in ground water fill in the pore spaces of dead organisms.

• Preserved evidence of the activity of an organism.

Tags

NGSS.MS-LS4-1

What is mold fossil?

• A fossil copy made when a mold is filled with sediment.

• The preserved evidence of the activity of an organism.

• The impression in a rock left by an ancient organism.

• A carbon outline of an organism.

Tags

NGSS.MS-LS4-1

What are trace fossils?

• Copies of organisms formed by material replacement.

• Fossil copies made when molds are filled with sediment.

• The preserved evidence of the activity of an organism.

• Fossil carbon outlines of an organism.

Tags

NGSS.MS-LS4-1

What is the fossil record?

• A collection of rocks in chronological order.

• A collection of fossils and their placement in chronological order.

• A list of materials found in rocks.

• A record of the earth's magnetic field.

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

What is relative-age dating?

• Determining the exact age of a rock.

• Comparing the age of rocks and geologic features with other rocks and features nearby.

• Dating rocks using radioactive isotapes.

• Measuring the amount of carbon in a fossil.

Tags

NGSS.MS-ESS1-4