SOL Review ES.3/13

According to the diagram, before Procyon B used its helium, it was-

What two planets' atmospheres are made of mostly carbon dioxide?

Which other planet in our solar system is most similar to the mass and diameter of Earth?

The first country to land humans on the Moon and return them safely was-

When do spring tides occur?

According to the Big Bang Theory, how long ago did the explosion that began the universe occur?

The “measuring stick” that astronomers use to determine stellar distances is the

Which of these measurements allows scientists to compare the brightness of stars?

According to the diagram, point 1 would be experiencing a —

Planets that have little/no atmosphere get hit by asteroids often. Which planet would get hit?

A star begins its formation as gravitational forces cause instability within a-

Which number represents a waning gibbous?

Which chart correctly identifies the three types of galaxies shown in the figure?

The moon has a stronger influence on Earth's tides than the sun because the moon-

What is a black hole?

A main sequence star becomes a ______ after it uses up the hydrogen in its core.

Which characteristic do all the planets in our solar system have in common?

Hubble detected a red shift in the light from objects within galaxies. This would indicate-

According to the diagram, which of the following stars are closest to death?

Which statement describes a comet?