Escola Secundária

Augusto Gomes

English Oral Presentaion7th Grade

Can there be life on Mars?

For many years, scientists have questioned the chance of life on Mars.

This is because the planet is very similar to Earth. People have used planets like Mars to create the idea of “Aliens” to use in movies.

It once had: water, the same amount of dry land as Earth, weather, clouds and winds.

About Mars

Because of Mars’ thin, and cold atmosphere, water can no longer exist on the surface.

Scientists have found proof such as: deep canyons and places that look like lakes. These things are created by water on Earth.

Mars is a lot colder than Earth, because it’s much further away from the Sun.

Water On Mars?

Although Mars has an atmosphere much smaller than Earth’s, it still has clouds and wind.

Since Mars is so cold, people believe that there is ice deep underground creating part of the planet.

It also gets a lot of sandstorms which can last more than a month each time.

Weather On Mars

With that being said, human life on Mars is highly unlickley to some and impossible to others. Water, as we all know, is essencial to human life, and does not exist on Mars. Besides that, Mars is too cold for

us humans beings.

Despite all facts, some scientists still believe that there exists life on Mars even with all the evidence

that says otherwise.

Now only one question remains:

Conclusion:

Do you think there might have ever been life on Mars? Or

even that there is now?

The End

Daniela Henriques Jesus Lorenzo

7ºB nº6

http://answers.yahoo.com/question/index?qid=20090309141408AANlSf3

http://en.wikipedia.org/wiki/Terraforming

http://www.racetomars.ca/mars/article_water.jsp