What is a fossil?

• The preserved remains of an animal, plants or organisms from the past
• Minerals or dirt filling in a hollow space

• Amber

• Cast

Tags

NGSS.MS-LS4-1

Scientists study fossils to learn about the _____, where, what, when, why, and how the fossils lived.

• Future

• Preserved

• Amber

• Past

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

NGSS.MS-LS4-2

A _______ fossil is the imprint of an animal or plant.

• Cast

• Mold

• Trace

• True Form

What are true form fossils?

• The plant or animal itself
• Molds

• Casts

• Minerals fill up the hollow space

What is an example of a trace fossil?

• Cast

• Mold Fossils

• Fossilized footprints

• Amber

Minerals or dirt filling in a hollow space would create what type of fossil?

• Cast
• Preserved

• Mold

• Trace

An example of a _____ fossil is when a leaf is buried in sediment, the sediment squeezes and pushes together the leaf into stone. When the leaf is washed away it leaves a hollow space that takes the shape of the leaf.

• Mold

• True Form

• Cast

• Trace

True or false? A mold fossil forms when hard parts of an organism leaves behind an impression.

A ________ fossil forms as a result of the mold, minerals fill the mold and those minerals become the ______.

• amber, amber

• trace, trace

• cast, cast

• true, true

Which layer shows the oldest fossils?

Tags

NGSS.MS-ESS1-4