Students made a hygrometer by sealing the end of a straw with wax and adding some sand until the hygrometer floated in fresh
water. Students then collected water samples from around Virginia
to see how well the hygrometer floated in the different water
samples collected. Which of these explanations best fits the
observation

as many times as you want

yes? sounds right, but you didn’t ask a question.

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds

several tissues working together form an organ, and several organs together make up an organisms.

the group of cell that carries out special jobs are tissue.