ELA 7

Why is Mars called the “fourth rock from the sun”?

• A. It is the fourth planet in the solar system.
• B. It has four large mountains.
• C. It has four layers in its atmosphere.
• D. It is 4,000 miles away from Earth.

What is one reason Mars is dangerous for humans?

• A. Wild animals live there.
• B. The planet is too close to the sun.
• C. Radiation exposure due to lack of a magnetic field.
• D. It has extreme weather, like hurricanes.

Why might people live underground on Mars at first?

• A. To stay safe from radiation.
• B. To be closer to water supplies.
• C. To avoid strong winds.
• D. To have better access to plants.

What would settlers on Mars use to make building materials?

• A. Wood and bricks brought from Earth
• B. Rocks and metals found on Mars
• C. Ice and snow from Mars’s poles
• D. Plastic from space stations

How is food expected to grow on Mars?

• A. By planting seeds directly in Martian soil
• B. By transporting crops from Earth regularly
• C. Using robots to harvest wild plants
• D. Using greenhouses with fertilizer

Why would settlers likely eat a vegan diet on Mars?

• A. It’s cheaper to transport vegetables than meat.
• B. Animals are too hard to raise in space.
• C. Vegans are healthier than meat eaters.
• D. Vegan food helps create oxygen.

What energy sources would Mars settlers rely on?

• A. Solar and wind power
• B. Oil and natural gas
• C. Batteries brought from Earth
• D. Coal and diesel fuel

How long is a day on Mars (a “sol”)?

• A. About the same length as an Earth day
• C. 24 hours and 40 minutes
• B. Twice as long as an Earth day
• D. 12 hours

Why would Martian colonies need to recycle almost everything?

• A. Waste management is expensive.
• B. The planet has no extra resources.
• C. Recycling creates oxygen.
• D. NASA requires strict recycling rules.

What is one main goal of scientists living on Mars?

• A. Finding evidence of past or present life
• B. Building large cities quickly
• C. Terraforming the planet for plants
• D. Proving Mars has no water