Unit 7- Components of the Universe

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

• an asteroid

• a moon

• a galaxy

• a nebula

Tags

NGSS.MS-ESS1-2

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

Elliptical, spiral, and irregular are all classifications of the overall shape of which of the following?

• stars

• galaxies

• nebulae

• comets

Tags

NGSS.MS-ESS1-2

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.

Stars are made mostly of which two elements?

• hydrogen and helium

• mercury and strontium

• iron and potassium

• krypton and bismuth

Tags

NGSS.HS-ESS1-3

Galaxies are classified into all of the following types by their shapes EXCEPT -

• spiral

• elliptical

• lenticular

• crescent

As a whole, Giants are considered hotter than White Dwarfs.

• True
• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In the diagram given, what happens as we move to the left?

• Stars Get Larger
• Stars get Colder
• Stars get hotter

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which star is the coldest?

• Yellow Star
• Red Star
• Orange Star
• Blue Star

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Compared to the rest of the stars, our sun is considered...

• Extremely Large and Cold
• Small with a medium temperature
• Medium size with medium temperature

Tags

NGSS.MS-ESS1-3