CLMS Earth Science Unit 3 Review

Front

What is a comet?

Back

A comet is a small celestial body made of ice, dust, and rocky material that, when passing close to the Sun, heats up and begins to release gases, forming a glowing coma and sometimes a tail.

Front

What is an asteroid?

Back

An asteroid is a small rocky body that orbits the Sun, primarily found in the asteroid belt between Mars and Jupiter.

Front

What is a meteoroid?

Back

A meteoroid is a small particle from a comet or asteroid that is in space.

Front

What is the significance of an object's composition in classifying celestial bodies?

Back

The composition of an object helps determine whether it is classified as a comet, asteroid, or meteoroid.

Front

What is a light-year?

Back

A light-year is the distance that light travels in one year, used to measure vast distances in space.

Front

What is the life cycle of a star?

Back

The life cycle of a star includes stages such as nebula, main sequence, red giant, and supernova or white dwarf, depending on its mass.

Front

What determines the life cycle of a star?

Back

The quantity of mass with which the star began determines how it will progress through its life cycle.

Front

What is the Big Bang?

Back

The Big Bang is the leading explanation for the origin of the universe, proposing that it began as a singularity and expanded rapidly.

Front

What role do rockets play in space exploration?

Back

Rockets are used to launch satellites and transport humans and equipment into space, overcoming Earth's gravity.

Front

What is the difference between a planet and a star?

Back

A planet is a celestial body that orbits a star and does not produce its own light, while a star is a massive, luminous sphere of plasma that generates energy through nuclear fusion.