6.4 Nebulae [Mastery check]

What are nebulae?

• groups of exploding stars

• clouds of gas and dust in space

• a collection of stars

• groups of stars forming a pattern

Stars, like our Sun, form from nebulae. How long ago did our Sun form?

• 4.6 million years ago

• 46 million years ago

• 4.6 billion years ago

• 46 billion years ago

Tags

NGSS.HS-ESS1-1

The Orion Nebula is a nearby star-forming region in which galaxy?

• Pegasus

• Andromeda

• IC 1101: a supergiant elliptical galaxy at the center of the Abell 2029 galaxy cluster

• The Milky Way

Tags

NGSS.MS-ESS1-2

Which of these statements is correct?

• All nebulae act as stellar nurseries.

• Only some nebulae act as stellar nurseries.

• No nebulae ever act as stellar nurseries.

What are the most common gases found in nebulae?

• hydrogen

• helium

• nitrogen

• neon

Most nebulae are very large .......

• some are larger than galaxies.

• some are more than 10000 times bigger than the Solar System.

What is the gas most commonly found in nebulae?

• hydrogen

• helium

• neon

• oxygen

Reorder the following objects in the order of size from smallest to largest.

• nebula

• asteroid

• moon

• star

Tags

NGSS.MS-ESS1-3

Which statements about nebulae are true?

• All nebulae contain dust and gas.

• All nebulae act as stellar nurseries.

• All nebulae are different shapes.

• All nebulae are bigger than the Milky Way galaxy.

Stellar nursery is an area in space where ____________ are formed.

• stars

• nebula

• Solar System

• planets