Our Solar System HMH Science

How many planets are visible from Earth without a telescope?

• Three

• Four

• Five

• Six

When can you see Venus in the sky?

• Only at noon

• Just after sunset or just before sunrise

• Only at midnight

• Only during a full moon

Which planet orbits closest to the sun?

• Venus

• Earth

• Mars

• Mercury

How would Mercury look if you could travel there?

• Like a giant ocean

• Like a forest

• Like our moon

• Like a desert

Which planet is known to have life?

• Mars

• Venus

• Earth

• Jupiter

How is Venus's spin described?

• Very fast

• Very slow

• Medium speed

• Not spinning

How many more days does Mars take to orbit the sun compared to Earth?

• 100 days

• 200 days

• 322 days

• 400 days

What did al-Battānī's astrolabe help calculate?

• The weight of planets

• The positions of stars and planets

• The color of stars

• The size of the sun

The atmosphere is...

• a planet

• metal and rock

• mixture of gases that surround a planet

• i dont know

What is the purpose of an astrolabe's discs?

• To play music

• To calculate the positions of stars and planets

• To tell time

• To measure temperature