Mysterious Mars

What is the main topic of the article 'Mysterious Mars'?

Scientists searched for signs of water on Mars because:

• they wanted to find evidence of past life.

• they were interested in the planet's geology.

• they aimed to understand the planet's climate history.

• they planned to establish a human colony.

Fill in the blank: Mars is a rocky planet that has _______, hills, and plains.

• craters

• rivers

• forests

• oceans

True or False: Mars is very warm and has a mild climate.

• True

• False

What challenges would living things face on Mars according to the article?

• Lack of oxygen and water

• Abundance of food

• Mild temperatures

• Plentiful vegetation

What was the name of the first spacecraft that flew to Mars in 1975?

• Pathfinder

• Viking

• Mars Polar Lander

• Spirit

NASA sent Pathfinder to Mars in the year:

• 1995

• 1996

• 1997

• 1998

What was the main job of the Mars Polar Lander?

• To test rocks and soil

• To look for signs of life

• To look for water under the planet's south ice cap

• To take photographs

The two robots that NASA sent to Mars in 2004 are:

• Spirit and Opportunity

• Curiosity and Perseverance

• Viking 1 and Viking 2

• Sojourner and Pathfinder

What did the robots Spirit and Opportunity do on Mars?

• They explored the surface of Mars.

• They built structures on Mars.

• They communicated with Martians.

• They took humans to Mars.