4th Quarter Science Test

What is the main component of the Sun?

• Hydrogen

• Helium

• Carbon

• Oxygen

Which gas makes up the majority of the Sun's composition?

• Helium

• Hydrogen

• Oxygen

• Carbon Dioxide

What is the approximate diameter of the Sun?

• 1.8 million kilometers

• 1.4 million kilometers

• 1.2 million kilometers

• 2.5 million kilometers

How does the size of the Sun compare to Earth?

• The Sun is only 10 times larger than Earth in diameter.

• The Sun and Earth are roughly the same size and mass.

• The Sun is smaller than Earth, being about 50 times narrower.

• The Sun is significantly larger than Earth, being about 109 times wider and 333,000 times more massive.

What type of energy does the Sun primarily radiate?

• Electromagnetic energy

• Thermal energy

• Kinetic energy

• Nuclear energy

What is the process called that generates energy in the Sun?

• Gravitational collapse

• Nuclear fusion

• Thermal radiation

• Chemical reaction

How does the Sun's energy affect life on Earth?

• The Sun's energy is essential for photosynthesis, climate regulation, and sustaining life on Earth.

• The Sun's energy has no impact on Earth's weather patterns.

• The Sun's energy causes all life to die instantly.

• The Sun's energy is only useful for heating the atmosphere.

What happens to shadows as the Sun moves across the sky?

• Shadows only appear in the morning and evening.

• Shadows disappear when the Sun is at its highest point.

• Shadows remain the same throughout the day.

• Shadows change direction and length as the Sun moves across the sky.

Why do shadows change length throughout the day?

• Shadows change length due to temperature variations.

• Shadows change length throughout the day due to the changing position of the sun in the sky.

• Shadows are affected by the rotation of the Earth around the moon.

• Shadows remain the same length all day.

What time of day do shadows tend to be the longest?

• Noon

• Early morning and late afternoon

• Midnight

• Early afternoon