Flashback Flashcard (Units 5-8)

Front

What determines the color of a star?

Back

The temperature of the star determines its color.

Front

How do greenhouse gases affect the planet?

Back

They trap heat in our atmosphere, causing the planet to warm up.

Front

What type of plate boundary occurs when two plates move apart?

Back

A divergent plate boundary.

Front

Which star is hotter: Vega or Pollux?

Back

Vega is hotter than Pollux.

Front

What is the carbon cycle?

Back

The carbon cycle is nature's way of recycling carbon.

Front

What is a greenhouse gas?

Back

A greenhouse gas is a gas that traps heat in the atmosphere.

Front

What is the main cause of global warming?

Back

The increase of greenhouse gases in the atmosphere.

Front

What happens at a convergent plate boundary?

Back

At a convergent plate boundary, two tectonic plates collide.

Front

What is the role of trees in the carbon cycle?

Back

Trees absorb carbon dioxide from the atmosphere.

Front

What is the difference between a star and a planet?

Back

A star generates its own light, while a planet reflects light from a star.