Ryan

PbS2- Lead disulphide KBr-Potassium bromide H2O-Hydrogen dioxide COCl2- carbon oxide dichloride? FeN- Iron(I)Nitride CuO- Copper(II)Oxide HCl- Hydrogen Chloride KH- Potassium Hydride BeS- Beryllium Sulfide FeAgN- Iron(II)Silver(III)Nitride? O2-Oxygen Rd- Radeon N2- Nitrogen HgO-Mercury Oxide UO2-Uranium Oxide

Ionic Bonding covalent bonding



Hypothesis: if i put an oxygen probe inside a glass of that has been heated and put an oxygen probe in a room temperature glass then, the probe in the heated glass will have the lower oxygen level. Materials Method Independent variable: The salt water in the beaker, Dependent variable: How much oxygen is collected in the experiment Control group: Undefined --- ﻿Hypothesis: If I put a pH probe in Cola, Disidin, Lime juice, tap water, water from a cooler, vinegar, salt water, 50% alcohol, and Pure alcohol, then Lime juice or Cola will be the most acidic and disidin and 100% alcohol will be the most basic. Materials: · Data Logger · Cola · Disidin · Lime juice · Tap water · Water from cooler · Vinegar · Salt water · 50% alcohol · Pure alcohol · Probes · Laptop · 50 ml beakers · 400 ml beakers   Conclusion: For the most part I was very far off with my predictions but I predicted the two highest acid levels right. I knew all citrus fruits and most things that are sour are acids while things like soap are bases. Thats why I was surprised Disiclin was a base. So in the end I predicted the acids right but not the bases. -- Scientific Method theory
 * Oxygen probe
 * 2 400 ml beakers
 * heater or bun-son burner
 * Laptop
 * Logger lite computer program for windows
 * timer of some kind
 * 1) prepare materials.
 * 2) Heat Glass beaker until it is 80C
 * 3) put an oxygen probe into the heated glass
 * 4) let it sit in the glass for five minutes.
 * 5) take the probe out of the glass
 * 6) record data found from probe
 * 7) wipe the probe off and clean it so that it is perfectly calibrated
 * 8) put the oxygen probe in an empty beaker.
 * 9) let it sit for five minutes.
 * 10) record the data found within the five minutes.
 * || oxygen level ||  ||
 * Heated glass ||  ||   ||
 * Empty Beaker ||  ||   ||

Scientific method is the process in which a scientist reaches a certain outcome by trial and error reasoning. A scientific method must contain a hypothesis, a testing phase, data in some form, and a conclusion. However, based on the nature of an experiment, it can also contain more information in the form of; data tables, graphs, etc. Every scientist uses this method as well as anyone who is learning something. Many of us use scientific method all the time without realizing it. This is because it is a very simple way to learn anything. -This is confusing, the message you are trying to send to your audience isnt clear in the second last sentance. But your definition is good and understandable. - ﻿Very good definition and it is very understandable.

Hypothesis is the original theory behind what the scientist is experimenting on. In order for it to be a hypothesis, the theory must be testable. Therefore, a theory such as “If I drop a glass vase on a wool carpet, then it will not break” is a hypothesis while a hypothesis like “If I play hopscotch on water then, a puppy in Africa will bark” is not. There are an unlimited number of possibilities for a hypothesis also meaning there are unlimited possibilities for experimentation too. - I wouldn't say it is a theory because a theory is a statement created through your knowledge earned thorugh testing your hypothesis. -

The next phase is known as the ‘testing phase’ or ‘experimental phase’. This is where the scientist would test his hypothesis too see if he is correct or not. An experiment always consists of an independent variable, and a dependent variable. The independent variable is something that the tester changes from its natural state. The dependent variable only changes when the independent variable changes. Usually it is done in several trials and the data is then recorded so it can later be analyzed. So if I were too test the hypothesis from before, I would drop three of the same glass vases at three different heights on the same wool carpet and write down if it cracks, breaks etc. The independent variable would be the height where I drop the vase while the dependent variable would be if the vase cracks or breaks. This is because it the cracks depend on the height of the vase while the height of the vase is independent of if it cracks or not. If the vase does not crack then it will still have been dropped from the same height, but, if the vase is dropped from a different height, then it will affect the size of the cracks in it or if it breaks. - Well explained, gives a good overall understanding of both the dependant and independant variables.

The last phase in the scientific method is the conclusion. This is where the scientist analyzes his/her data to see if their hypothesis is correct. The scientist will now look at all of their data to see what is the the most frequent result of his tests to see if it matches his theory.

Most of us use the scientific method all the time without even realizing it. This is because the simplest idea of a scientific method I think is trial and error. Though we may not mix chemicals together when we do, we use the scientific method a lot of times to make a decision or answer a question. For example, I use to use the scientific method when figuring out what bus to take when coming home from school in Maryland. Without scientific method in the world there would be no learning. - ﻿Your sentance a paragraph is not clear but i do understand what you are talking about, but your paper was done well. Maybe you left out a couple of steps because before you come up with a hypothesis, which is created based on previous knowledge and you would have to research inorder to know the general understanding of the experiment. -Owen McCleery

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Scientific Method Experiment

Hypothesis: If I put a glass of water in the science room and one outside then, the room temperature water will be warmer than the outside water. Materials: 180 ml water, six beakers, 6 temperature probes and compatible laptop. Method: - Put three beakers of 30 ml of water in the science room and three beakers of 30 ml of water outside and out of the shade. - Let them stand for 5 minutes. - Test one group at a time using the temperature probes to see the temperature of the water. Leave the probes in for 10 minutes doing 2 tests per second. - After testing compare the two sets of water from each test. Record your results and repeat.

Hypothesis is good and understandable, method is good you show the amounts of certain things needed which most methods should have, and your data table looks like you could have stated instead of science room just a class room, but it really doesnt matter. But overall great.
 * Water location || Trial 1 Temperature || Trial 2 Temperature || Trial 3 Temperature ||  ||   ||   ||
 * Outside Water ||  ||   ||   ||   ||   ||   ||
 * Science Room Water ||  ||   ||   ||   ||   ||   ||