Scientific eye: The Solar System

What is the primary reason Venus appears so bright in the sky?

• It is very close to Earth.

• It has its own light source.

• It is the largest planet in the solar system.

• It reflects sunlight.

Which planet is known for having a surface temperature hot enough to melt lead due to its greenhouse effect?

• Jupiter

• Venus

• Mercury

• Mars

What did ancient Egyptians believe about the Sun?

• It was rowed across the sky by a god.

• It orbited Earth.

• It was a large rock.

• It was a reflection of the Moon.

Who proposed the heliocentric model where the Sun is at the center of the universe?

• Aristotle

• Nicolaus Copernicus

• Galileo Galilei

• Isaac Newton

What significant astronomical tool did Galileo Galilei improve?

• The compass

• The telescope

• The sextant

• The astrolabe

Which planet has the fastest winds in the solar system?

• Saturn

• Jupiter

• Neptune

• Mars

What is the main factor that keeps the planets in orbit around the Sun?

• Gravity

• Magnetic fields

• Solar winds

• Atmospheric pressure

What was the first manned mission to land on the Moon?

• Voyager 1

• Luna 2

• Apollo 11

• Apollo 13

Which planet is known for its giant red spot, a massive storm?

• Neptune

• Saturn

• Jupiter

• Mars

What did Isaac Newton theorize about gravity?

• It is an invisible force of attraction between objects.

• It can be negated in a vacuum.

• It only affects planets, not stars.

• It is stronger on smaller planets.