Stars Lesson

Draw

Highlight words you recognize and can explain. Underline words you do not understand.

Match

Match the following

Elliptical

Spiral

Irregular

• Elliptical

• Spiral

• Irregular

Multiple Select

Stars have to be

• Self Luminous

• Producing Radiation

• Orbiting a Galaxy

• Made of helium

Multiple Choice

What is on the X-axis?

• Temperature

• Size

• Luminosity

• Stars

Multiple Choice

Is the lowest Temperature stars on the right or left?

• Right

• Left

Multiple Choice

What information is on the Y-Axis?

• Lumosity

• Temperature

• Main Sequence

• Stars

Multiple Choice

Brightest and the Brightest stars are:

• Blue Giants

• Red Super Giants

• White Dwarfs

• Main Sequence

Multiple Choice

What star exists at 5,000K and 10² luminosity.

• Red Giants

• Main Sequence

• White Dwarfs

• Red Super Giants

Labelling

Approximately where are the labels on the diagram.

Drag labels to their correct position on the image

Super Giant

Giant

White Dwarf

Main Sequence

Sun

​Absolute Vs Apparent

​Absolute Magnitude- How bright a Star actually is if all stars were the same distance away.

Apparent Magnitude- The Brightness of a star as seen from earth.

Poll

Do you believe that horoscopes determine personality or life events?

• Yes

• No

• Maybe

Home

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Drag and Drop

Stars produce ​

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due to energy being release from ​

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This also creates new ​

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​

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stars convert ​

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into helium.

Drag these tiles and drop them in the correct blank above

light

nuclear fusion.

elements.

Main Sequence

hydrogen

X-rays

Nuclear fission.

compounds.

Super Giants

Oxygen

Draw

Draw a diagram showing how nuclear fusion and gravity determine a stars characteristics.

Multiple Choice

What determines the life cycle of a star?

• Mass

• Shape

• Size

• Brightness

Multiple Choice

What are nebulas?

• Large clusters of stars that create other stars.

• large clusters of gas that condense and create stars.

• Groupings of neutron stars and dwarf planets that create main sequence stars.

• Large amounts of hydrogen, helium, and oxygen that condense and create stars.

Multiple Select

Nebulas have the potential to become:

• Main Sequence

• Giants

• Red Dwarfs

• Neutron Stars

• Black Dwarfs

Multiple Choice

What characteristics determines whether or not it is main sequence?

• they produce Light

• hydrogen is converted to helium

• They are red in color

• They are smaller than the other stars

• they came from nebulas

Multiple Choice

Super Giants are

• stars that have run out of hydrogen and star creating heavier elements

• Stars that run out of helium and start creating heavier elements

• Stars that run out of hydrogen and become heavier and denser due to lack of nuclear fusion

• The densest objects in the universe.

Open Ended

A hippie man comes up to you and says "Dude, you are made of star stuff man!" Is he right? Why?

Multiple Choice

Our sun will go supernova true or false?

• True it is a main sequence

• False it is a main sequence

• False it is too massive

• True it is not massive enough

Multiple Select

Black holes are not

• The densest things in the universe

• Giant vacuums

• Worm Holes

• Holes

• The ending to massive stars

Multiple Choice

Neutron stars are the result of

• very low mass stars

• very massive stars

• stellar nebulas

• large moons

Multiple Choice

White dwarfs

• Are very small very dense stars

• Are very small very dense cores of stars

• Very small very dense neutron stars

• Very small very dense black holes

Drag and Drop

​

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nebulas create other ​

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objects in the universe. They often surround a dense ​

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They sometimes will recondense back into new ​

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Drag these tiles and drop them in the correct blank above

Planetary

celestial

white dwarf.

stars.

black dwarf.

supernovas

planets.

Open Ended

White are black dwarfs hypothetical?

Multiple Choice

1. What is a Galaxy?

• A Galaxy is a group of hundreds of stars held together by gravity.

• A Galaxy is a group of billions of stars held together by gravity.

• A Galaxy is a single star in space.

• A Galaxy is a group of planets held together by gravity.

Multiple Choice

What is a star?

• A star is a planet in space.

• A star is any self-luminous celestial body of gas that shines by radiation derived from its internal energy sources.

• A star is any luminous object in the sky that can be observed from earth.

• Stars are a human concept used for navigation and timekeeping.

Multiple Choice

What happens when a star runs out of hydrogen in its core?

• It becomes a black hole.

• It collapses into a neutron star.

• It starts forming heavier elements.

• It explodes in a supernova.

Multiple Choice

How are stars classified based on their characteristics?

• By their size and weight.

• By their luminosity and temperature.

• By their speed and color.

• By their distance from Earth.

Multiple Choice

How do we determine what stars are made of?

• By there spectrograph

• By there Red-shift

• By where they are in the universe.

• By how old they are.

Multiple Choice

What is the main sequence of a star?

• The stage when a star is forming.

• The stage when a star is fusing helium with heavier elements

• The stage when a star is fusing hydrogen atoms to form helium in its core.

• The stage when a star is collapsing.