WHAT ARE REVERSIBLE AND IRREVERSIBLE CHANGES?
https://www.youtube.com/watch?v=Z-lGJ82Blt0
IRREVERSIBLE CHANGES
https://www.youtube.com/watch?v=QrIwF1kKbyw
CHANGES OF STATE IN WATER (MELTING AND EVAPORATING)
https://www.youtube.com/watch?v=pz2AtzVkohY
CHANGES OF STATE IN WATER (CONDENSATION)
https://www.youtube.com/watch?v=cjvGQmZFM24
TYPES OF MIXTURES
https://www.youtube.com/watch?v=4mLst4JqyhU
REVERSIBLE AND IRREVERSIBLE CHANGES
https://www.youtube.com/watch?v=XRHBrdhd9_U
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