Identify the following as physical properties or chemical properties.
a. reacts with water
b. is red
c. is shiny and slivery
d. melts easily
e. boils at 100 c
f. is non flammable
g. has low density.
h. tarnishes in moist air

Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.

Mixing salt in water is an example of physical change

Robin is swinging back and forth from a trapeze. in which of the following situations is his kinetic energy being transformed into potential energy