Structure of the Universe

The universe includes

• all the stars that exist

• all the planets that exist

• all the gas and dust that exisits

• all of the above

What is a galaxy

• a celestial object that orbits a star

• a hot sphere of plasma that produces its own energy

• a cluster of stars, dust, gas and matter

• a system of planets that orbits a star

What is a planetary system?

• a cluster of solidi and rocky objects in space

• a system of stars that orbit a planet

• a system of planets that orbit a star

• a cluster of stars, dust and planets

How do we measure the distance between galaxies and distant stars?

• Meters

• Kilometers

• Sound Years

• Light Years

Tags

NGSS.MS-ESS1-3

A light year is approximately

• 600 miles

• 600,000 miles

• 6 million miles

• More than 6 trillion miles

Tags

NGSS.MS-ESS1-3

What is a celestial object?

• a type of star

• a type of planet

• a man-made object found in space

• any natural object found in space

Which of the following is NOT a characteristic of a planet?

• a planet orbits a star

• a planet's gravity is great enough so that its shape is round

• A planet has cleared its orbital path of celestial objects

• A planet has at least one moon.

What is a moon?

• a small object that orbits a star

• An object that orbits a planet

• a very small planet

• a gaseous object that reflects light from stars

Which of the following is NOT a gas giant?

• Venus

• Jupiter

• Saturn

• Uranus

The color of a star tells you about:

• the size of the star

• the brightness of the star

• how far away the star is

• the surface temperature of the star

Tags

NGSS.HS-PS4-3