Which answer below correctly identifies the changes you observed and the explanation when a candle
burns?
physical change because the wax melted and changed shape
chemical change because light and heat were formed as the wick and the wax burned
both physical change because the wax melted and changed shape and chemical change
because light and heat were formed as the candle burned
neither a physical change nor a chemical change because the wax only melted and light was
produced from the match

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant. 

Anyone know the answer?