What is the primary focus of the video by Speedie Didi?

• Learning about terrestrial planets and the solar system.

• Understanding the history of space exploration.

• Discussing the life of astronauts.

• Exploring the universe beyond our solar system.

Why does the Sun appear small in the sky?

• Because it is not a real star.

• Because it is hidden behind clouds.

• Because it is actually small.

• Because it is very far from Earth.

What is a unique feature of Mercury's surface?

• It is covered in water.

• It has a lot of craters.

• It is made of gas.

• It is covered in ice.

Why is Mercury not suitable for human life?

• It has no atmosphere.

• It is too far from the Sun.

• It experiences extreme temperature changes.

• It is too close to Earth.

What makes Venus the hottest planet in our solar system?

• Its thick atmosphere trapping heat.

• Its volcanic activity.

• Its rapid rotation.

• Its proximity to the Sun.

Why can't humans live on Venus?

• It is too far from the Sun.

• The surface pressure is too high.

• It has no water.

• It is too cold.

What is Mars often called due to its color?

• The Green Planet

• The Yellow Planet

• The Blue Planet

• The Red Planet

What is the name of the tallest mountain on Mars?

• Olympus Mons

• Mount Everest

• Mauna Kea

• K2

What is the name of the rover sent to explore Mars?

• Spirit

• Opportunity

• Curiosity

• Perseverance

What is the main purpose of the Curiosity rover on Mars?

• To build a colony.

• To explore and gather information about Mars.

• To send humans to Mars.

• To find water.