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States of Matter
Year 4 have been studying states of matter – solids, liquids and gasses. We conducted an experiment whereby each child had a blue and yellow ice-cube to melt. From this we learnt that heat melts ice. The liquid changed to a green colour too, and this showed us that the yellow and blue particles had mixed. We then conducted another experiment using this liquid to see what conditions are needed to freeze liquid. We put one cup of water outside, one in the fridge and the other in the freezer. Only the liquid in the freezer froze and we learnt that the freezing point for liquid is 0 degrees Celsius.