Impact 2 - Unit 5 Reading Comprehension p.78

50C is the maximum temperature in the Sahara Desert.

Some microorganisms live in very salty seas, solid rocks and volcanoes.

Strain 121 is a type of bacteria that likes temperatures of up to 250C

Tardigrades are also extremophiles.

Extremophiles are organisms that are bigger than tardigrades.

Studying all these organisms may show us how life might exists on different worlds.

Tardigrades didn't survive their trip to the outer space.

On a normal day, temperature in Arctic is lower than -30C

Water bears will not survive without water or oxygen.

Tardigrade is also sometimes called 'water bear'