DAY 7 - 8th Grade Science STAAR Review

An astronomer observes several items in the night sky and writes down their approximate distance from Earth. What is most likely Object #3?

• a planet, probably Jupiter or Saturn

• a nearby star relatively close to our solar system

• a comet

• another galaxy

Tags

NGSS.MS-ESS1-3

Using the chart, what is most likely Object #2.

• Venus

• a nearby star relatively close to our solar system

• a black hole near the center of the Milky Way

• another galaxy

Tags

NGSS.MS-ESS1-3

The following picture is the Horsehead Nebula and is located about 1,500 light years from Earth in the constellation Orion. What is most likely occurring in the Horsehead Nebula?

• new star formation

• formation of black holes

• star explosions like supernovas

• the birth of new galaxies

Tags

NGSS.HS-ESS1-3

The stars we see at night are:

• in the Milky Way galaxy

• in the solar system

• in galaxies other than the Milky Way

• both A and C

Tags

NGSS.MS-ESS1-2

Use this model of the Hertzsprung-Russell diagram to answer the question: An astronomer discovers a new star that is very hot, but not very bright. What type of star did she discover?

• a red giant

• a young star on the main sequence

• an old star on the main sequence

• a white dwarf

Tags

NGSS.HS-ESS1-3

Our Sun is a middle-aged star with an average temperature and brightness. What type of star is our Sun according to the Hertzsprung-Russell diagram?

• a white dwarf

• a red giant

• a star on the upper left portion on the main sequence

• a star in the middle of the main sequence

As a normal, averaged-size star progresses through its life cycle, what change will it undergo?

• it becomes cooler

• it gets smaller

• it becomes brighter

• its gravity increases

Tags

NGSS.HS-ESS1-3

Which of the following galaxies is most like our own Milky Way?

• Galaxy A

• Galaxy B

• Galaxy C

• Galaxy D

Tags

NGSS.MS-ESS1-2

Which answer choice could best be classified as an asymmetrical galaxy?

• Galaxy A

• Galaxy B

• Galaxy C

• Galaxy D

Tags

NGSS.MS-ESS1-2

Pulsars are dense, rotating stars that emit strong electromagnetic radiation with a wavelength around 6 mm. Using the chart below, what type of telescope would be best suited for observing pulsars?

• radio telescopes

• infrared telescopes

• optical telescopes

• ultraviolet telescopes

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-5