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What is a rapid mass movement of large amounts of rock and soil down a slope called?


What is a stream's ability to erode depend upon?

Rainwater, oxidation, carbonic acid

What are some of the agents for chemical weathering?


What is the wearing down and carrying away of rock and soil through the action of water, force of gravity, and action of the wind called?


What is the process that changes a liquid into a gas in the water cycle called?


What is a sediment deposit formed when a stream flows into a lake or the ocean called?

A moraine

How is the absolute age of an igneous rocked determined? Radioactive isotopes
What is a mound of sediment formed at the downhill end of a glacier and along its sides called?


What are deposits formed from windblown sand called?

Longshore drift

What is the process that moves sand along a shore?

Pressure increases, light decreases, and temperature decreases

How doe pressure, light, and temperature change as the ocean depth increases?

Density differences of ocean water.

What causes deep currents in the ocean?


What causes caves to form from erosion?

Triassic, Jurassic, and Cretaceous periods

What periods are in the Mesozoic Era?


Where is most of Earth's liquid fresh water found?

The remnants of previous stars

What forms a solar nebula?

The explosion of a nearby star

What causes a solar nebula to start to contract?

Formed from a rotating cloud of dust and gas

What started the solar system?


What is a front when two unlike air masses form a boundary, but neither is moving?


What is a weather system with a center of low pressure?

A dense visible mass of ice crystals and tiny water droplets

What is a cloud?

Rotation of Earth

What causes day and night?


Where does weather take place?


What is a pattern of weather over many years in a region?

Rain and freezing rain

What types of precipitation falls as a liquid?


Know the symbols for the fronts that are in your book on page 776.

An ice age

What is an example of a long-term climate change that occurs naturally?


What makes up about 78% of the air?


How much solar energy reaches Earth and is absorbed by the surface?

Gulf of Mexico

Where would a maritime tropical air mass that affects weather in the United States form?

Westerlies, trade winds, polar easterlies

What are examples of a global wind?

Polar zone, temperate zone

Which region usually has temperatures cooler than temperatures near the equator?

Marias craters highlands

What are some of the features of the moon?


Which planet has the largest atmosphere and the lowest density of all of the planets in the solar system?

Neil Armstrong

What was the first person to walk on the moon?

Nine planets, moons of the planets, the sun

What are in our solar system?

Geocentric model

Which model has the Earth stationary at the center?

What explains the origin of the universe?

big bang theory

Based on their shapes

The How are galaxies classified into four groups?


What is a tropical storm with sustained winds of at lest 119 kilometer per hour

Color, size, and absolute brightness

How do astronomers classify stars?

The inward and outward forces with thin the sun must be in equilibrium

How is the sun kept stable?

In light years

How are distances between stars measured?

Gravitational effects on visible matter

You will be given a diagram similar to that on page 830 and you will need to identify the layers of the sun.
How is dark matter detected?

Nuclear fusion

How does the sun produce energy?

About half

About how many of all stars are members of a star system?

Low-mass and medium- mass stars

What turns into white dwarf?

About 90% of their lifetimes

About how long do star remain on the main sequence?

Associations are typically larger

How do open star clusters differ from associations?

Its is moving toward Earth

What does it mean when a galaxy shifts toward the blue end of the spectrum?


How does the life cycle of a star begin?

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