Determine that the weight of water before freezing, after freezing, and after melting stays the same.
Students will observe and record changes in water as it relates to weather.
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Describe changes in the size, weight, color, or movement of things, and note which of their other qualities remain the same during a specific change.
Plan and carry out an investigation to determine if a chemical change occurred based on observable evidence (color, gas, temperature change, odor, new substance produced).
Provide evidence from observations to construct an explanation that some changes in matter caused by heating or cooling can be reversed and some changes are irreversible.
Investigate the properties of a substance before, during, and after a chemical reaction to find evidence of change.
Identify patterns of change in things - such as steady, repetitive, or irregular change - using records, tables, or graphs of measurements where appropriate.