Earth's History Lesson 1

What are fossils?

• Imprints left by aliens on Earth.

• Preserved remains or traces of ancient organisms.

• Fossils are not real, they are a myth.

• Artificially created replicas of ancient organisms.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

How are fossils formed?

• Fossils are formed when plants or animals are frozen in ice and preserved over time.

• Fossils are formed when the remains of plants or animals are buried in sediment and over time, the minerals in the sediment replace the organic material, creating a rock-like replica of the original organism.

• Fossils are formed when plants or animals decay and leave behind a mold in the sediment.

• Fossils are formed when plants or animals are petrified by volcanic activity.

What can fossils tell us about Earth's history?

• Fossils provide evidence of past life forms, their behaviors, and the environmental conditions in which they lived.

• Fossils can tell us about future life forms and their behaviors.

• Fossils can accurately predict the future climate conditions on Earth.

• Fossils provide information about the geological processes that shaped the Earth.

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What are rock layers?

• Horizontal or nearly horizontal layers of rock

• Layers of soil.

• Curved layers of rock.

• Vertical layers of rock.

Tags

NGSS.MS-ESS1-4

How are rock layers formed?

• Sedimentation

• Tectonic movement

• Volcanic activity

• Erosion

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

What is relative age?

• The age of an object compared to its absolute age.

• The age of one object in relation to its size.

• The age of an event compared to its duration.

• The age of one object or event in relation to another object or event.

How can relative age be determined?

• By comparing the ages of different objects or events in relation to each other.

• By using carbon dating techniques.

• By analyzing the growth rings in tree trunks.

• By studying the layers of sediment in rock formations.

Tags

NGSS.MS-ESS1-4

The Law of Superposition helps scientists to determine what?

• The absolute age of rock layers

• The age of fossils

• The relative age of rock layers

• the super powers of squirrels

Tags

NGSS.MS-ESS1-4

According to the law of superposition, the oldest fossils are found 

• At the top of the rock layers
• Near the bottom of the rock layers
• In the middle of the rock layers
• Somewhat near the surface

Tags

NGSS.MS-ESS1-4

_{Which rock layer in the diagram seems to be the oldest?}

• F
• E
• B
• A

Tags

NGSS.MS-ESS1-4