Earth's Changing Surface Review

Earth's Changing Surface Review

Lets get ready for you Knowledge Check!

Earth's Spheres

• Atmosphere

• Geosphere

• Biosphere

• Hydrosphere

• Cryosphere

Multiple Choice

All living things are part of the __.

• Hydrosphere

• Biosphere

• Geosphere

• Cryosphere

• Atmosphere

Multiple Choice

The Earth's crust, mantle, and core are part of the__.

• Hydrosphere

• Cryosphere

• Biosphere

• Geosphere

How does Earth's Surface change?

Earth's surface changes in two main ways.

1. Gradually

2. Catastrophically

Multiple Choice

Gradual changes take___.

• Moments

• Days

• Months

• Hundreds and Thousands of years

Gradual Changes

• Erosion (Wind, Rain, Gravity, and Ice)

• Plate Movement (Plate Tectonics)

• Mountain Formation (Plate Tectonics)

• Island Formation (Volcanoes)

Catastrophic Changes

• Earthquakes

• Volcanic Erruptions

• Hurricane

• Tornadoes

• Floods

• Asteroid Impact

Multiple Choice

Catastrophic changes take___.

• Moments

• Days

• Months

• Hundreds and Thousands of years

Costal Erosion

• Waves and currents erode away the rocks of the shore

• Landforms: Sea Caves, Sea Arches, Sea Stacks, Fjords, Sea Cliff, Beaches

Multiple Choice

Is costal erosion catastrophic or gradual?

• Catastrophic

• Gradual

Mountain Formation

• When a continental tectonic plate collides with another plate it is compressed and mountains form.

• This takes Millions of years.

• Examples: Andes, Rocky, Himalayan Mountains

Multiple Choice

Is Mountain formation catastrophic or gradual?

• Catastrophic

• Gradual

Flooding

• When a river or lake flood the surrounding area.

• Can cause major erosion of landforms

Multiple Choice

Is Flooding catastrophic or gradual?

• Catastrophic

• Gradual

River Erosion

• Moving water Erodes away the rocks it passes.

• Landforms: Ox Bow Lakes, Valleys, Delta

Multiple Choice

Is river erosion catastrophic or gradual?

• Catastrophic

• Gradual

Volcanic Island formation and Erosion

• Volcanoes under the ocean erupt and create new crust.

• Slowly this crust builds up until it makes an island.

• Over Thousands of years the islands slowly erode back into the ocean.

Multiple Choice

Is Island formation and erosion catastrophic or gradual?

• Catastrophic

• Gradual

Meteor Impact

• When a celestial object falls and crashes into Earth's Surface.

• Creates an impact crater, sends a dust cloud into the sky that can block the sunlight causing plants and animals to die.

Multiple Choice

Is a meteor impact catastrophic or gradual?

• Catastrophic

• Gradual

Glacial Erosion

• As the Ice Flows forward it scrapes away and smooths the land.

• As the Ice Melts it forms Rivers and Lakes

• Rivers flow faster as the ice melts

• Glaciers melt and form lakes in a low spot

Multiple Choice

Is a glacial erosion catastrophic or gradual?

• Catastrophic

• Gradual

You are ready for your Assessment! Good Work!

Multiple Choice

What would cause a state (Like Alaska or California) to have many valleys?

• Glacial Erosion

• River Erosion

• River Floods

• Volcanic Activity

Multiple Choice

What would cause many lakes to form?

• Glacial Erosion

• River Erosion

• Costal Erosion

• Volcanic Activity