Millie

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My chemistry poems : __ Bubble Lab Research __ __ Research Question __ : Will the bubbles be stronger if I add glycerin and detergent together. For my new solution I am using Glycerin and detergent. I am using Glycerin because it is strong. __ Research __ : Glycerin is thick and strong. It mixes well with detergent and water so it would strengthen the outer layer of the bubble walls, making them last longer. Glycerin is hydroscopic. Hydroscopic means it absorbs water from the atmosphere, so if glycerin absorbs water out of the air adds it to the bubble wall, it would replace the water that is naturally evaporating from the bubble. Then it would be able to make the bubble last longer. __ Materials: __  · 100 mL and 50mL Graduated cylinder · Water-230 ml · Liquid dishwashing soap · Glycerin-20 ml · 3 Pipe cleaners · Stopwatch

__ Conclusion and analysis __

**__ The Scientific Method __**

The scientific method is the steps you take to answer and solve an observation or a question. There were many people who have said to have invented it but no one can be credited for actually creating it. The scientific method dates back to hundreds of years ago but before the scientific method people would just guess the  answer to  their problem. They could not prove or disprove anything but now we use the scientific method and don’t even know it. Look over it agian millie and see where you have gone wrong ﻿ also it should be " answer to their" not " answer their". the second sentence is unclear to me. If we dont even know were using it then why are we doing an essya on it ? - Confused. No, it should be is, because it's one method =P oscar is right. In the scientific method there are four steps to follow. The first step is realizing a problem. This means if you have made an observation that you need answering then you have your problem. The second step is then forming a hypothesis. A hypothesis is usually an if… then… statement. The third step is analyzing data. This means to research or gather up data that you need to answer your problem. The last step is to construct a conclusion. This is to see if your hypothesis was correct and to see if you answered your problem. Good Explanation. Scientists use the scientific method to construct an experiment to answer a problem or an observation they have come across. If they come across a question or problem they then go through all the steps of the scientific method to form an experiment. Once they have done this then they go through their conclusion then if it has answered their question then they share it with the world.Everyone uses the scientific method. One of the ways I use it outside of the class room is if I made an observation that my brother was staying up late and not getting good grades then I would try to answer my observation by forming a hypothesis in my head and try work it out. I would also see if my brother went to bed early and found out his marks, I would work out that my hypothesis was right. ﻿There should be a space after World. - it should be World. Everyone not: World.Everyone Good job well explained

Taylor- good job. good sources well found

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[] Scientific method  Good Job Millie :) I think you did a good job, but you should read your work after is done, and check everything is right, but it was good :) Marcela Ryan other than the mistakes the others pointed out i cant see anything wrong and it is good FREDDIE: GOOD Effort joshua Oscar =D Good job, Millie. Freddie is right: in the first paragraph is something distracting. Marius. __ Scientific investigation __ __Question__: Can I hit a baseball better with a wooden bat or an aluminum bat? With this Question I will use the scientific method by following each step to answer the question. The experiment I would conduct for this question is first I would make two lines of four people in each line. I would then call them line one and line two. In line one, they would have a wooden bat and in line two, they would have an aluminum bat. Then each person in the line would have a go hitting the ball and I would record the distance of each player’s hit. They would then do this three times. Then I would tell line one to switch the bat they were using with line two, and have another three goes hitting with the new bat. I would then write down their distance and compare the data. __Observation__: We were playing baseball at school and we were playing with a wooden bat. Then one of the students asked if they could use an aluminum bat. When he used the aluminum bat he hit better than he did with the wooden bat. __Hypothesis__: If I hit the ball with an aluminum bat then I should hit better than I would with a wooden bat. __Independent Variable__: the aluminum bat. __Dependent variable__: The distance. __Controlled Variables__: Amount of force, wind speed and objects in the way that might collide with the ball. __Experimental group__: The people hitting with the aluminum bat. __Control group__: people hitting with the wooden bat. __ Materials: __ · Wooden bat · Aluminum bat · Tape measurer · Eight people __Method__:  1. First I would divide the eight people in to two lines of four, and name them line one and two.  2. In line one I would give the first person in the line the wooden bat, and in line two I would give them an aluminum bat.  3. Ones they have hit with their bat three times I would record the distance of each of their hits onto a data table.  4. Then I would tell line one to switch the bat they were using with line two, and have another three goes hitting with the new bat.  5. I would then record the data into the data table and compare the distance between the wooden bat and aluminum bat.  6. Once you have done this then with the information you have collected then form your conclusion.

__Data Table:__


 * name of person ||  Trial  ||  Aluminum bat  ||  Wooden bat  ||

__ Blood Pressure __ Question- What is the blood pressure between people who are lying and people who are telling the truth? Hypothesis: If you lie then your blood pressure will be higher than if you were telling the truth. Independent Variable: The Blood Pressure meter Dependent Variable: Blood pressure Control group: Telling the truth Experimental group: Telling a lie Variables to control: 1. If they have been working out or lying down 2. Make sure the tell someone the real answer