Stars
What is a star mostly made of?
Hydrogen and helium
Planets orbit around what object in space?
The Sun
Is the Sun a planet or a star?
A Star
Which is larger, a star or a planet
Usually a star
What tool helps scientists observe stars and planets more closely?
A telescope
True or False: All stars are the same size and brightness.
False
Name one way planets are different from stars.
Why does the Sun appear brighter than other stars?
It is much closer to Earth?
What do both stars and planets do in space?
They both move
What kind of scientists study stars and planets?
An astronomer
What do we call a star that is much bigger and brighter than most other stars?
Giant Star or Supergiant
What is one way we can describe the motion of planets?
They revolve around the sun/stars and rotate on their axis.
What energy does the Sun give off that supports life on Earth?
Light and heat
Which object appears to move across our sky during the day?
The Sun
How has the Hubble Telescope helped scientists study space?
The Hubble's position above Earth helps see space better than telescopes on the ground.
What does a star's relative size mean?
Means how big something looks to us, which depends on how far away it is
True or False: Planets can be larger than some stars.
True
How does the size of the Sun compare to Earth?
The Sun is much bigger than Earth
Why can we see some planets with the naked eye at night?
They reflect the Sun’s light.
How are telescopes today similar, but different from 30 years ago?
Telescopes still use mirrors and lenses to see space, but now have better technology like cameras.
What is one reason why stars look smaller than the Sun from Earth?
They are much farther away
What makes a planet different from a moon?
A planet orbits a star, while a moon orbits a planet.
Why is the Sun is a star and not a planet?
It produces its own light and heat, just like other stars.
Why do stars and planets seem to move in the sky even though they are far away?
Because Earth rotates
What improvement in telescopes has helped us get the most accurate information about objects that are faraway in space?
They send telescopes into space.