Use information from the paragraph to answer the question. Paragraph : A given volume of a denser substance is heavier than the same volume of a less dense substance. Question: Sarah is carrying two tubs, one is filled with rocks, the other with feathers. The tub with feathers will be lighter because it is more dense or less dense?
less dense

(Question)
Use information from the paragraph to answer the question. Paragraph : As the liquid particles lose energy, their movement slows down even more. As their movements become slower and slower, the attractive forces between become stronger. Question: When we are increasing energy used while running what will happen speed up or slow down?
(Answer)
speed up

Ques: Use information from the paragraph to answer the question. Paragraph : Water becomes more dense when it is colder and when it has more salt. Question: When ice melts into water it becomes less dense. or more dense?
Ans: less dense.

(Q).
Use information from the paragraph to answer the question. Paragraph : At higher elevations, there is less air to press on a given area. Question: When we get to the top of a mountain the air is more dense or less dense?
(A).
less dense

Ques:Use information from the paragraph to answer the question. Paragraph : Temperature affects the rate at which photosynthesis, cellular respiration and decomposition take place. The rate of reaction increases with increasing temperature and decreases at lower temperatures. Question: If the temperature in the environment increases, what will happen to the rate of cellular respiration increases or decreases?

Ans:increases

Use information from the paragraph to answer the question. Paragraph : Alkanes with more carbon atoms have higher boiling and melting points, so some of them are solids at room temperature. Question: John was playing with alkanes in his lab. If he increased the amount of carbon atoms in an alkane, what would happen to the boiling point of that alkane decrease? or increase?
increase