space quick check

the _____ of a star will determine its lifespan.

• magnitude

• mass

• rotation

• temperature

many stars are classified in terms of brightness, or

• age

• power

• magnitude

• mass

a ​ (a)   star has a higher temperature than a ​ (b)   star

• blue
• red
• purple
• hypergiant
• black dwarf
• black hole
• supergiant

how bright a star appears to us on Earth depends MAINLY on

• the composition of the star.

• the age of the star.

• your position on Earth.

• the star's distance from Earth.

consider the data about the planets in our solar system. Identify the planet with the longest year.

• venus

• neptune

• mercury

• jupiter

imagine that you can stand on any of the planets! on which planet would you weight the most?

• neptune

• earth

• jupiter

• saturn

​ (a)   form a belt between Mars and Jupiter.

• asteroids
• comets
• meteors
• stars