Units 1 5 Science Assignment

¶ … roll the can, does it wobble back and forth as it slows down? What kind of sound does the can make when you slowly turn it upside down and right side up again? My hypothesis is that the can is a can of fruit. Some of the answers given were that the can has solids packed in liquid, at least from the sound the can makes when shaken. It is a regular can shape, cylindrical so things like tuna or canned vegetables are out because they would be shaped differently.

A can of beans has fairly gelatinous liquid so the sound made would be more muffled and vegetables tend to be packed tightly with little water in it. Fruit however, has a lot of liquid with some fruit packed in it and serial numbers on both ends. Also canned fruit is more common than other things and the can was found by itself with the numbering smudged off so I'm guessing it is pretty old and for the most part forgotten because it is so common.

Unit I measure my cereal on a daily basis. I add 3/4 cup of cereal, a serving size, to one cup of almond milk. I use a measuring cup of 1/4 cup so I can just use that for the cereal and the soy milk. I like to keep track of my caloric intake so when I measure the amount that I eat, I know exactly how many calories I consume based on the suggested serving sizes and my adherence to it.

If the measurements are inconsistent, I then eat too much or too little and may not meet my macro requirements for the day. Precise and accurate measurement removes the guesswork. It allows me to know exactly what is being used and how much of it is being used. Things are portioned in a way that relies on precision. It just makes things easier.

If I had something that weighed and measured volume all in one, that would make portioning things much easier, especially if it could extend to fit more liquids and shrink to fit less. Most people don't measure their cereal. They simply put it in a bowl and eat, eyeballing the quantities. Geology for example, measures the size, weight, and volume of minerals in order to identify them, like mercury.

They set standards for certain mineral to make them easier to identify like granite has a certain hardness and weight per gram compared to something lighter like mica. Unit 3 Wegener revealed his theory about continents in motion in 1912. He said the coastlines looked like they could match other coastlines and therefore identified they were once joined and drifted apart. While creating such theories early is risky, it is also beneficial because it opens up discussion to either support the theory or refute it.

In order to avoid looking like a 'crackpot' there needs to be evidence like collection of samples from the coastlines of continents and identifying if they are the same age and general composition to see if they could have been once joined. That is part of the scientific method, you perform an experiment and then analyze the data. While his collection of ancient climate data confirmed his glacial data and thus eventually the continental drift there, in today's world, he could have used paleomagnetism.

Essentially examining rock layers and seeing if the magnetization was not in agreeance with its position could show there was movement. Unit 4 Aphids are eaten by ladybugs. Ladybugs are eaten by dragonflies. Dragonflies are eaten by frogs. Frogs are eaten by ducks. Ducks are eaten by humans. Humans eat what they produce. Humans run an extensive agricultural business that helps grow vegetables, grains, and fruit. Humans also eat animals. So they fit in the middle. They produce and are carnivores as well through eating meat.

Food webs are more accurate than food chains. Food chains only show one prey and one predator. Food webs show multiple prey and predators. The producers are phytoplankton as they are the ones that produce energy through sunlight. These are blue and blue-green algae. They feed the fish that feed the other fish. If algae grew too much or lessened, the fish that feed on them would lessen or increase, leading to either a decrease or increase in predator fish like the Coho salmon. Pollution could decrease algae.

Overfishing of salmon could increase forager fish and decrease algae. The lamprey could have easily been attached to a dead fish brought in a boat and escaped and found its new home in the lake. Lamprey make holes in fish and can cause injury, killing them. Barriers prevent lampreys from moving.