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WorksheetsStars
Total questions: 37
Worksheet time: 30mins
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
The Sun is the biggest star in the sky.
The professional who studies the stars is...
an astronaut.
an astrologer.
an astronomer.
What will be the next stage in our star the sun's life cycle?
supernova
white dwarf
blackhole
red giant
Why will our sun not become a supernova?
It is too bright
It is too small
It is too large
It is too old
The reaction in the core of a star that makes them shine is called
nuclear fission
supernova
hydrostatic equilibrium
nuclear fusion
Which of the following will give the best indication of a star's temperature?
the distance of the star
the radius of the star
the color of the star
the age of the star
Which of the following stages represents a dying star?
Main sequence
Protostar
Nebula
Red Giant
Which of the following is the most abundant element in the Sun?
Hydrogen
Helium
Carbon
Oxygen
Which of the following is true for red stars as compared to blue stars?
They live longer
They are hotter
They are always brighter
They convert hydrogen to helium faster
What kind of star lives a very hot, bright and short life?
Red giant
Main sequence
High mass star
Low mass star
Which of the following is a possible order of life for a low mass star?
nebula, protostar, brown dwarf, red giant, white dwarf, black dwarf
protostar, nebula, main sequence, white dwarf, black dwarf
nebula, protostar, main sequence, red giant, planetary nebula, white dwarf, black dwarf
protostar, nebula, main sequence, red giant, brown dwarf, white dwarf
What are the two forces that balance and cause a star to be round?
gravity and fusion
radiation pressure and fusion
gravity and radiation pressure
hydrostatic equilibrium and fusion
What happens after low mass stars completely finish fusing hydrogen into helium?
They begin to fuse heavier elements
They fuse iron
They collapse and turn into a planetary nebula
They collapse and supernova
True or False-The energy source for all stars is nuclear fusion.
True
False
How the stars are classified?
Stars can be classified according to their color and size.
Stars can be classified only by temperature
All are correct
The size of stars is very variable.
True
False
