1) If you leave butter in the sun, a) it melts. b) it freezes. 2) Plants die if a) you water them. b) you don't water them. 3) If you mix green, red and blue paint, a) you get white paint. b) you get black paint. 4) You breathe slowly if a) you are relaxed. b) you are stressed. 5) If the water reaches a 100 ºC, a) it freezes. b) it boils. 6) If you mix water and oil, a) the oil mixes with the water. b) the oil floats above the water. 7) If you heat ice, a) it melts. b) it freezes. 8) If you freeze water, a) it turns into ice. b) it turns into gas.

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