I. Check the meaning of these words: 

earth  /  evolve  /  environment  /  evolution  /  unlikely  /  however  /  diversity of life

II. Watch the video up to 0:32 minutes and answer the following question:

Why is the Earth the best planet for us? 

III. Why do you think life can exist on the Earth? In pairs, think about possible reasons.

IV.Watch the second part of the video and complete the reasons why there’s life on Earth with the missing word.

1. We’re located in the ____________zone of a main-sequence star that doesn’t produce too many killer __________ flares.
2. We’ve got a thick _______________filled with oxygen and nitrogen that we can breath
3. The planet is large enough so that it’s still molten in its core with a rotating ball of iron that maintains a planetary _______________ field. This combined with a thick atmosphere protects the surface of the planet from _____________, the worst of ultraviolet radiation from the Sun and deadly solar storms.
4. We have plate tectonics that constantly recycle material on the _____________ of the planet bringing fresh chemicals up from its interior.
5. We have a relatively large _____________ which probably keeps our planet more stable in its axial tilt with tides that helped early life-forms transition from the oceans to the land. But not too big a moon.
6. We have huge ______________that help regulate the climate of the planet moving warm waters to cooler regions to make them more diverse and habitable.

IV.In pairs, write the introduction of your article on a Google Doc.