James has a very detailed model of the solar system where each planet is made out of granite rock. Since his little sister really liked the model, he spent two weeks in his dad's workshop building her a Styrofoam copy. When he picked up the models to take them back inside the house, which physical property would he immediately notice upon picking them up?
A.
color
B.
conductivity
C.
density
D.
ductility

C. density

Explanation:

Density has to do with weight. Hen you pick up the Styrofoam model, you would notice how much more light it is opposed to the granite model.

? you expect us to answer this? ? this is your schoolwork, i don't think we can with this, i think it would considering being

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e