the sun
nuclear fusion
the milky way and galaxies
astronomical distances
star life cycle
100

This is the type of star the Sun is classified as.

What is a medium-sized main-sequence (yellow dwarf) star?


100

This process powers the Sun.

What is nuclear fusion?


100

The Milky Way is this type of galaxy.

What is a spiral galaxy?


100

This is the unit used to measure distances between stars.

What is a light-year?


100

A star is born in this cloud of gas and dust.

What is a nebula?


200

The Sun appears brighter than other stars because of this reason.

What is its closeness to Earth?


200

Fusion converts hydrogen into this element.

What is helium?


200

The Sun is located here in the Milky Way.

What is a spiral arm?


200

 Light takes this long to travel from the Sun to Earth.

What are 8 minutes?


200

Once fusion begins, a star enters this long-lasting stage.

What is the main-sequence stage?


300

These are the two most common elements in the Sun.

What are hydrogen and helium?


300

The balance between gravity and fusion pressure inside a star is known as this.

What is hydrostatic equilibrium?


300

This is why galaxies contain stars, dust, gas, and this invisible matter.

What is dark matter?


300

One light-year is approximately this many metres.

What is 9.5 × 10¹⁵ metres?


300

 This type of star forms after a low-mass star becomes a red giant.

What is a white dwarf?


400

This part of the Sun is where nuclear fusion occurs.

What is the core?

400

Fusion requires extremely high values of these two physical conditions.

What are temperature and pressure?


400

This is the approximate number of stars in the Milky Way.

What are hundreds of billions (100–400 billion)?

400

This star is the closest one to the Sun.

What is Proxima Centauri?


400

These are the two possible deaths of a high-mass star.

What are neutron star or black hole?


500

what object emits the most sunshine

lebron james

500

This force tries to collapse the star inward during fusion.

What is gravity?

500

furthest galaxy from the milky way

shays house

500

The fact that a star is 10 light-years away means this.

Its closer than shays house

500

This spectacular explosion marks the end of a red supergiant.

What is a supernova?

M
e
n
u