ANSWERS: 3
  • Ice is very cold water.
  • It's true to say that Science isn't in the business of proving things, however I still want to have a go : P ***** At normal atmospheric conditions at sea level on Earth, the chemical 'water' (H2O) will solidify at 0 degrees Celsius, and boil at 100 degrees Celsius. The primary reaction in the centre of our sun is the fusion of hydrogen atoms to form helium. Light travels at 299'792'458 m/s in a vacuum. ***** Meh, the first one is a bit dodgy, since it is sort of a tautology (it is still true, just a bit circular and pointless).
  • Science makes a proposition and then tests it. If the evidence from the test confirms the proposition, we say we've proved it. Science is about testing. And proving is about testing. You may want to check the origin of the word "prove": http://www.etymonline.com/index.php?search=prove&searchmode=none

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