09 8r Astronomy Quiz Solar System, Stars, Comets, and Asteroids

Stars are made mostly of

• oxygen and nitrogen

• hydrogen and helium

• carbon and sulfur

• iron and magnesium

Why do stars shine?

• Nuclear fusion in the core of the star releases heat, light and other types of EM radiation.

• Stars shine due to the reflection of light from nearby planets.

• Stars emit light because of chemical reactions on their surface.

• Stars shine as a result of gravitational collapse and heat generation.

Why do stars in the night sky look so small?

• They are made of gas

• They are far away

• They are very small objects

• They are not very bright

Most stars are made of which elements?

• Oxygen and Nitrogen

• Hydrogen and Helium

• Carbon and Iron

• Neon and Argon

What is the first stage of a Star's life cycle?

• Nebula

• Red Giant

• Main Sequence

• White Dwarf

What causes day and night?

• Earth's rotation or spin

• The tilt of the Earth's axis

• The distance from the sun

• The moon's phases

Which of these is the smallest? universe, solar system, planet, moon

• universe

• solar system

• planet

• moon

Which planet is sometimes called the red planet because the surface is made of iron-rich oxides?

• Venus

• Jupiter

• Mars

• Saturn

What word best describes our sun?

• Average

• Supergiant

• Dwarf

• Red Giant

If it is summer in the Northern hemisphere, it is what season in the southern hemisphere?

• Spring

• Autumn

• Winter

• Monsoon