Mason is making a model of a front in science class. He fills clear jar halfway with olive oil. He then slowly pours very cold water that has been colored blue into the jar. The cold water sinks to the bottom of the jar and forces the olive oil upwards. Which of the following statements correctly describes an aspect of Mason’s model?

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it

answer///scientific method;