Unit 4: Earth’s Systems and History

Who is the person credited with developing the theory of continental drift?

• Harry Hess
• Galileo
• Alfred Wegener
• Newton

Tags

NGSS.MS-ESS2-3

The was often called the “Age of Humans”.

(a)   .

• Quaternary period
• Pleistocene

• Jurassic period
• Cambrian

• Triassic period
• Paleozoic era

Tags

NGSS.MS-ESS3-4

Soil formation is associated with the rock cycle when rocks undergo form changes and cause ​ (a)   .

• melting

• evaporation

• condensation

• bedrock to weather
• deposition

Tags

NGSS.MS-ESS2-2

Identify the information that Wegner used in his hypothesis that there was once a supercontinent called Pangaea but separated over time.

• Identical weather patterns on all continents

• Tropical plant fossils discovered in Arctic areas.

• The same languages spoken across continents

• The fit of the continents (like puzzle pieces)

• Similar fossils found on different continents

Major events that took place during the Mesozoic era include:

• a. The rise and dominance of dinosaurs

• b. The first appearance of mammals as dominant land animals

• c. The formation of the Himalayas

• d. The extinction of trilobites

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

The rate of chemical weathering is created when exhaust gases from vehicles enter the atmosphere and impact land development.

• True

• False

Some characteristics of the Precambrian era are:

• Abundant complex life forms and flowering plants

• Dominance of dinosaurs and first birds

• Formation of Earth, simple life forms, and development of atmosphere

• Rise of mammals and appearance of humans

Tags

NGSS.MS-ESS1-4

The law of superposition states that in undisturbed layers of rock, the oldest layers are at the bottom and the youngest are at the top.

• True

• False

Tags

NGSS.MS-ESS1-4

Define mechanical weathering. Give an example.

• Mechanical weathering is the physical breakdown of rocks into smaller pieces without changing their chemical composition. Example: Frost wedging or abrasion by wind or water.

• Mechanical weathering is the chemical alteration of rocks, changing their mineral composition. Example: Rusting of iron-rich rocks.

• Mechanical weathering is the process by which plants produce acids that dissolve rocks. Example: Lichen growing on rocks.

• Mechanical weathering is the melting of rocks due to high temperatures. Example: Lava flow over rocks.

The ____________________________ provides evidence for geologists to refine the geological time scale. This information reflects major event changes in Earth’s climate.

• fossil record

• rock cycle

• tectonic plates

• weather patterns

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1