Earth, Sun, and Astronomy Worksheet

What is the main gas that makes up stars?

• Helium

• Oxygen

• Hydrogen

• Nitrogen

How long does it take sunlight to reach Earth?

• 4 light years

• 8 minutes

• 24 hours

• 1 second

Which color star is the hottest?

• Yellow

• Red

• White

• Blue

What keeps a star's gases held together?

• Gravity

• Magnetism

• Heat

• Light

Why does the sun appear bigger than other stars from Earth?

• Because it produces more energy

• Because it's actually the largest star

• Because it's closer to Earth

• Because it's the brightest star

What is Proxima Centauri?

• The hottest star

• The largest star

• The closest star to Earth after our sun

• The brightest star in the night sky

Where is Earth located in relation to the sun?

• In the danger zone

• In the cold zone

• In the habitable zone

• In the hot zone

Which star is the brightest in our night sky?

• Proxima Centauri

• Sirius

• The Sun

• Polaris

What makes stars glow?

• Chemical reactions with oxygen

• Reflected light from other stars

• Gravity compressing hydrogen

• Electric currents

Why is the sun crucial for life on Earth?

• It controls Earth's rotation

• It provides energy as light and heat

• It creates Earth's magnetic field

• It produces oxygen