The Sun and Stars Quiz

What is the Sun composed mostly of?

• Sodium and Potassium

• Nitrogen and Argon

• Oxygen and Carbon

• Hydrogen and Helium

How many stars are estimated to be in the Milky Way galaxy?

• 1 billion

• 50 billion

• 100 thousand million

• 10 million

What causes the temperature of a star to rise during its formation?

• Magnetic Field

• Gravity

• Cosmic Rays

• Solar Wind

What is the current stage of the Sun's lifecycle?

• White Dwarf

• Supernova

• Main Sequence

• Red Giant

What happens to a small star like the Sun at the end of its lifecycle?

• It forms a black hole

• It becomes a red supergiant

• It becomes a neutron star

• It becomes a black dwarf

What is the final stage of the lifecycle of the largest stars?

• White Dwarf

• Red Giant

• Supernova

• Neutron Star

Why are black holes called black holes?

• Because not even light can escape their gravitational pull

• Because they are very small

• Because they emit light

• Because they are very hot

How compact is a neutron star?

• A teaspoon of material would have a mass of around 5 billion tonnes

• A teaspoon of material would have a mass of around 1 billion tonnes

• A teaspoon of material would have a mass of around 10 billion tonnes

• A teaspoon of material would have a mass of around 2 billion tonnes