Question

alfred 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 dads 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. ductility

c. conductivity

d. density

Explanation:

Granite rock is denser and heavier than Styrofoam. When picking up the models, the difference in weight due to density will be immediately noticeable. Color is a visual - not tactile - property. Ductility is the ability to be drawn into wires and not relevant here. Conductivity pertains to heat or electricity transfer and is not relevant when picking up the models.

Answer:

D. density