How do we know that caramelizing sugar is a chemical change? A. It involves dissolving sugar in water. B. It changes the state of sugar from a solid to a liquid. C. It separates sugar from a sugar solution. D. It changes the sugar's color.

Answer(b) 60 miles per hour;

Each student aligns the edge of the object with the left edge of the ruler as shown above. all four students read the ruler with a measurement of 4.6 cm. which statement describes the data they collect? i believe the answer is: the data have poor precision and poor accuracy because of a systematic error.

Answerit decreases;