WorksheetsStars and HR Diagrams
Total questions: 20
Worksheet time: 58mins
What is a Star?
a large celestial body that is made of plasma and held together by gravity.
a large ball of fire held together by gravity.
Our sun is currently in what star stage?
Protostar
Nebula
Main Sequence
Red Giant
Felix examined several photos of stars. To compare their temperatures, he looked at the colors of the stars. He organized the photos in order from coolest to hottest. Which of these answers shows the correct order?
red, yellow, white, blue
white, blue, yellow, red
yellow, white, blue, red
blue, yellow, white, red
True or False
The Sun is the biggest star in all of space.
True
False
Why does the sun feel so hot and look like the brightest star in our sky?
It is yellow.
It is the biggest star.
We can see it in the daytime.
It is the closest star to earth.
If two stars are the same size, then _______________________.
the cooler star will be brighter than hotter star
the smaller star will always appear brighter than the bigger star
the star that is closer to the Earth will appear brighter than the star that is farther away
stars are all the same brightness no matter how far away
Jerome notices that two stars appear to have the same brightness. He knows that one of the stars is much farther away than the other. What could he conclude about the two stars?
A) Both stars must have the exact same actual brightness.
B) The one that is farther away must be brighter.
C) The one that is closer must be brighter.
D) Both stars must five off the exact same amount of energy.
What characteristics are used to classify stars?
Flammability, weight, and reactivity
Temperature/color and brightness
Conductivity, luster, and density
Malleability, distance, and viscoscity
What is the Hertzsprung-Russel Diagram?
A map which tells the approximate location of stars in the Milky Way galaxy and their distance from Earth.
A table that alphabetically lists stars by name and includes dates of when the star was first charted.
A chart which organizes stars into categories based on the amount of Hydrogen they burn.
A graph used to classify stars according to their luminosity, color, temperature, and stage.
Knowing the color of a star also tells us its __________
age
location
temperature
name
Which star is considered a supergiant?
Sirius B
Sun
Betelgeuse
Van Maanan's Star
Which star is considered a giant star?
Mira
Zeta Arindani
Barnard's Star
Betelgeuse
Which star is considered a main sequence star?
Vega
Betelgeuse
Pollux
Van Maanan's Star
Which star is brighter than Alpha Centauri B, but dimmer than the sun?
Pollux
Spica
Tau Ceti
Mira
