15 Days of STAAR Check In- Part 3

A system of stars, gas, dust, and dark matter bound together by gravity is called -

• an asteroid

• a moon

• a galaxy

• a nebula

Which of the following describes a nebula?

• A cloud of gas and dust where new stars form

• An oval-shaped cluster of densely packed stars

• An explosion at the end of a giant star’s life

• A star and all the planets that revolve around it

Which of the following best describes a star? A star is a celestial body -

• composed of rock and metal with a very high density.

• that is too big to be an asteroid, but too small to be a planet.

• that rotates on an axis and revolves around the Sun.

• composed of gases that emit light due to nuclear reactions.

Which of the following is an accurate description of the relationship between components of the universe?

• Stars always contain galaxies.

• Galaxies contain many stars.

• Stars contain several nebulae.

• Nebulae contain many galaxies.

The universe has many different components. Which list places four components of the universe in the most likely order from smallest to largest?

• Planets, stars, nebulae, galaxies

• Planets, stars, galaxies, nebulae

• Nebulae, stars, planets, galaxies

• Galaxies, stars, planets, nebulae

Which star is hotter than Deneb

• Procyon

• Sun

• Regel

• Banard's Star

Which star is brighter than the sun?

• Sirius B

• Procyon B

• Van Maanan's Star

• Aldebaran

Which star is brighter than Alpha Centauri B, but dimmer than the sun?

• Pollux

• Spica

• Tau Ceti

• Mira

Which star is considered a main sequence star?

• Vega

• Betelgeuse

• Pollux

• Van Maanan's Star

Which star is considered a giant star?

• Mira

• Zeta Arindani

• Barnard's Star

• Betelgeuse