*Question*
Answer the question below: When ice melts into water it becomes less dense. or more dense? Assuming that: Water becomes more dense when it is colder and when it has more salt.
**Answer**
less dense.

*Question*
Answer the question below: If Mona is building a new mirror and she wants it to refract more light, what should she do the surface of the lens make it more curved or make it less curved? Assuming that: The more curved the surface of a lens is, the more it refracts light.
**Answer**
make it more curved

*Question*
Answer the question below: If Mona is comparing an orange and an apple and she determines that the apple is more massive then the orange, which object has more gravity orange or apple? Assuming that: Objects with greater mass have a stronger force of gravity between them.
**Answer**
apple

*Question*
Answer the question below: If Milo decreases the frequency on his shortwave radio, it does what to the amount of energy the radio is producing increases or decreases? Assuming that: Shorter wavelengths (higher frequencies) correspond to higher energies and thus hotter star temperatures.
**Answer**
decreases