Solar System

Scientists use these to magnify what they want to observe and study in space.

• barometers
• telescopes
• weather vane
• binoculars

A group of astronomers is studying objects that are very distant from our solar system. They are trying to decide if a new device is useful for their research. Which question would most help them decide if the device is useful for their research?

• Does it use more power than other devices?
• Is it bigger than other devices?
• Can it collect data further away than other devices?
• Is it more expensive to build than other devices?

A radio telescope can detect radio waves from stars. Radio telescopes can operate with or without daylight.  Why is this an advantage over other telescopes?A radio telescope __________.

• more expensive to build than other telescopes
• can see only planets
• can be used for longer periods of time per day
• can be used in any climate

Which device would allow scientists to learn more about the surface of a planet?

• probe
• satellite
• lander or rover
• telescope

Why would two objects in space that are the same size to appear different sizes from earth?

• One is hotter than the other
• One is a planet and one is a star
• One is closer to earth than the other
• One is a satelite

Because our Sun is the closest star to us in the solar system, it...

• is the oldest star
• it is the hottest star
• it appears larger than the other stars
• it is coldest star

Which is not true about stars...

• they are visible at night
• they are all the same size
• they have different colors
• they have different temperatures

Which of the following correctly describes one difference between planets and stars?

• Stars are larger than the planets that orbit them.
• Planets can make their own light, while stars cannot
• Stars are different sizes, while planets are all the same.
• Planets are always made of pure gas, while stars are solid

Which of the following objects do these attributes describe?  can have many or no moons, can be solid or made of gas, orbit a star, reflect light

• asteroids
• stars
• planets

Which of the following objects do these attributes describe? largest objects in solar system, made of gases, have different temperatures, give off light

• stars
• planets
• asteroids
• moons