A local cafeteria worker wanted to know if the color of the ice cream would 1 point affect the likelihood that it would get purchased. To test this, she took five
single gallons of PET vanilla ice cream. She dyed four of the five gallons...
one red, one blue, one green, and one yellow. She left the last gallon white.
She recorded how many scoops were purchased of each color. What is the
independent variable?
Color of the ice cream
Ice cream flavor
Number of scoops purchased
The cafeteria

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves