If you heat water to 100 degrees Celsius, - it boils., If you throw salt onto snow, - it melts., If you exercise regularly, - you feel healthy., If you mix red and blue, - you get purple., If you stay in the sun too long, - you get a sunburn., If water freezes, - it becomes ice., If you want to start your computer, - press the power button., If you want to improve your English, - play our free online games., Don't interrupt the lesson - if it isn't an emergency., If your sister doesn't want this magazine, - throw it away.,

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