Lakesha’s science group wants to know if a physical change occurs during an experiment. What evidence should they look for? Choose the three correct answers. A. a shape change
B. a temperature change
C. a change in the type of matter
D. a change in the state of matter

In order to calculate the amount of heat transferred you must know the __ and specific heat of the material, as well as the change in temperature. a. volume b. density c. mass d. enthalpy

Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?

Identify two types of chemical bonding in the source of dietary potassium