The color of a star tells us its

• magnitude
• temperature
• size
• age

Stars give off heat and light in a process called ___________.

• nuclear fusion

• supernova

• luminosity

• spectroscopy

Tags

NGSS.HS-ESS1-1

Stars are made of mostly which two gases?

• Hydrogen and Helium

• Hydrogen and Oxygen

• Hydrogen and Nitrogen

• Hydrogen and Carbon

Tags

NGSS.HS-ESS1-3

Based on evidence in the table, which star would appear the dimmest from Earth’s surface?

• Star A

• Star B

• Star C

• Star D

Tags

NGSS.MS-ESS1-3

Our sun is average-sized and average temperature.

• False
• True

Tags

NGSS.MS-ESS1-3

Apparent (magnitude) brightness is affected by a star's distance from Earth.

• False
• True

Put the stars in order from coolest to hottest.

• Blue, White, Yellow, Orange, Red
• Red, Orange, Yellow, White, Blue
• Red, Orange, Yellow, Blue, White
• Red, Yellow, Orange, White, Blue

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Very hot stars are what color? 

• Blue
• Yellow
• Red
• Orange

The absolute brightness of a star depends on its

• distance and temperature.
• size and temperature.
• color and temperature.
• distance and color.

Star Z and W both have the same luminosity of 100 lux, if Star Z is 10 ly closer to Earth which star has the highest apparent magnitude?

• Star W
• Star Z
• Both Star Z and W