MySci Unit 23: Stars and Constellations

What is luminosity?

• The measure of how much energy or light a star shines from its surface.

• The measure of how close a star is.

• The measure of how bright a star appears to be.

• The measure of how many Earth-sized planets would fit into a star.

A cluster of stars in the sky that have been grouped together in a pattern is called _____

• an arrangement
• an orbit
• a constellation
• a diagram

The most famous star to us Earthlings is _____

• Sirius A
• Sirius B
• Betelgeuse
• the Sun

Tags

NGSS.MS-ESS1-1

The ancient Greeks used the constellations to _____

• tell stories
• locate dim stars
• provide reading light
• to provide heat

Tags

NGSS.MS-ESS1-1

As the Earth rotates and revolves you'll see all the constellations over the course of _____

• a night
• a week
• a month
• a year

Tags

NGSS.MS-ESS1-1

one completed cycle of an object around another object

• axis

• rotation

• revolution

Tags

NGSS.MS-ESS1-1

an imaginary line an object turns or spins on

• axis

• constellation

• revolution

When something spins one full turn (like a basketball)

• revolution

• rotation

• axis

Tags

NGSS.MS-ESS1-1

The galaxy we live in that includes 100 billion stars, our sun, and all the planets in our solar system.

• Ursa Major

• Milky Way

• Orion

Tags

NGSS.MS-ESS1-2

The name for everything that exists anywhere...

• universe

• galaxy

• black hole