Lower temperature and higher salinity yield the densest water.  When water starts to freeze it becomes more dense or less dense?
more dense


(Question)
The more tightly packed the particles inside the material are, the more dense we say they are.  Sasha is throwing bottles into the lake. Some bottles are filled with sand, and some only have a tiny bit of sand in them. The bottles with a tiny bit of sand will sink last because they are less dense or more dense?
(Answer)
less dense


Ques: The forest habitat of elephants has also decreased in size due to humans moving in, so the numbers of the elephants have decreased.  If a herd of elephants and humans are living happily in a forest and the humans then decide to move away, what happens to the elephants they decrease in number or they increase in number?
Ans: they increase in number


(Q).
The farther you stretch the band, the greater the resistance is.  Mike is stretching a rubber band out. The harder he pulls, and the more he stretches it, the resistance of the band is greater or lesser?
(A).
greater


Ques:The more similar the DNA molecules of different species are, the closer the relationship is likely to be.  Two species with near similar DNA should have a close or distant relationship?

Ans:close


Question: The longer the resistor, the more resistance it has.  If Jim makes his resistor shorter, the resistance is exhibits is smaller or greater?
Answer:
smaller