Pedro is heating sugar to make caramel for an investigation. As the sugar is heating, he is looking for evidence of a chemical change. Select the observation that Pedro made about the chemical change.(40 points)
The color of the sugar stayed the same, which is evidence of a chemical change.
When the temperature is hotter, the rate of the chemical change is slower.
The sounds created from heating the sugar is evidence of a chemical change.
The odor created from the melting sugar is evidence of a chemical change.
