George conducts an experiment to observe the transfor of energy. He starts with two bowls half-filled with water. Then he adds a cup of hot coffee to bowl A and a glass of iced tea to bowl B. Which of these explains the transfer of heat energy occurring in this experiment?
A. Water in both bowls gains heat energy
B. No transfer of energy occurs in both bowls
C. Water in bowl A gains energy from the hot cup of coffee, and water in bowl B loses energy tot he glass of iced tea.
D. Water in Bowl A loses energy to the hot cup of coffee, and water in bowl B gains energy from the glass of iced tea

If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?

Amylase becomes denatured at a temperature of 80°c. during an experiment to study the effect of varyingtemperature on enzyme activity, amylase’s reactivity with starch was measured at body temperature (37°c), andthen again at an increased temperature of 42°c. how would this increase in temperature affect the experiment

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.