Marius







Bubble chemistry lab Research question: How does the addition of glycerin, corn syrup, or salt affect the physical properties of bubbles? For a very big bubble, in the internet is described that you have to use much glycerine. You should use water, soap and glycerine to blow the perfect bubble. If the air temperature is about -15 degrees the bubble will be frozen quick. For the biggest bubble I will use: 40 ml Water 40 ml Glycerine 20 ml Soap Salt The longest lasting bubble should have as much glycerin as water and less soap. I will put a little bit of corn syrup as well because the corn syrup makes it much more that it doesn’t pop after the blowing of it. I will put in the liquid: 60 ml water 60 ml glycerine 30 ml soap 30 corn syrup Salt

Table: || **Ingredient ** **detergent only ** || **Solution #2 ** **detergent + glycerin ** || **Solution #3 ** **detergent + corn syrup ** || **Solution #4 detergent + Glycerin + ** **salt ** || **Solution #5 ** **Detergent + corn syrup+ glycerin + slalt ** ||
 * **Solution #1 **
 * Water || 255 mL || 240 mL || 240 mL || 40 ml || <span style="font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt;">60 ml ||
 * <span style="font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt;">Detergent || <span style="font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt;">30 mL || <span style="font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt;">30 mL || <span style="font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt;">30 mL || <span style="font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt;">20 ml || <span style="font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt;">30 ml ||
 * <span style="font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt;">Glycerin || <span style="display: block; font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt; text-align: center;">- || <span style="font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt;">15 mL || <span style="display: block; font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt; text-align: center;">- || <span style="display: block; font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt; text-align: center;">40 ml || <span style="display: block; font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt; text-align: center;">60ml ||
 * <span style="font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt;">Corn Syrup || <span style="display: block; font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt; text-align: center;">- || <span style="display: block; font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt; text-align: center;">- || <span style="font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt;">15 mL ||  || <span style="font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt;">30 ml ||
 * <span style="font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt;">Salt || <span style="display: block; font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt; text-align: center;">no || <span style="display: block; font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt; text-align: center;">no || <span style="font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt;">no || <span style="font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt;">yes || <span style="font-family: 'Arial','sans-serif'; font-size: 9pt; line-height: normal; margin: 0in 0in 0pt;">yes ||

chapter 5 questions:

1. a) water, vinegar 1. b) nitro glicerine, water 2. Alloys are mixtures of metals. The solid is dissolved in a liquid. 3. collid 4. First I will filter the water and second i will distillate the water because of the sea water. After the destillation the water wll be pure. 5. Ink boils at a much higher temperature. Water boils at 100 C 6. The best possibility to seperate them is destilate because the liquids are after the destilation completly seperated.

1. C 2. B 3. A 4. D 5. a) ? 5. b) Oil and water 5. c) Right after it is shaken, everything is mixed. it depense what the third liquid which is added to the mixture. If its soap the mixture will stay mixed but if its something else, the oil will be seperated and the water will still be mixed with the other liquid. I can seperate them with a destillation. 5.d) destillation 7. b) rum and white sugar 7.c) You can remove the brown color from the sugar with a destillation. When you do the destillation, you will get two liquids: the white sugar and the brown color. 8. a) make coffe, vacume cleaner, water we drink from the pipe 8.b) Yes, its true because when you put a tea bag in hot water the tea become filtred and the water is the filter.

History of the periodic table

Greek thinkers: They used the word Element to describe the different parts of matter. Lavoisier: He wrotes the first 33 elements down. John Dalton: He was one of the first persons who did research about elements. Jöns Jakob Berzelius: He designed a table for the elements. Stanislao Cannizaro: He gave the elements numbers. Alexandre-Émile Béguyer de Chancourtois: He designed the first dimensional periodic table Lothar Meyer: He designed a periodic table of 56 elements. Ramsay: He added the group of noble gasses. Moesley: He edited the atomic numbers. Harry D. Hubbard: He modernized Mendeleev's periodic table Alexander Arrangement: He used a "free table".

Chapter II

1. A) Condense: If an element changes from liquid to gas B) Sublime: If solid turns in a gas C) Melt: If an element changes from Solid to liquid 2. If something is freezing it becomes to a solid and if something is meltingit becomes to a liquid. 3. Heat mixture of iodine and sand iodine will sublime accoording to it's property and you will get sand. 4. Osmosis is therefore aspecial type of diffusion involving a solvent such as water. 5. Brownian motion iswhen particlesmove but they are to small to see them. Sugar solution

1. solids 2. sublimation 3. freezing 4. C 5. 6.A) Diffusion is if you can smell gases, because they stay at the place they are. Wind is the reason because they dont stay. B)?? C) ?? 7)A) Melting, freezing, evaproation, condersation, sublimation B) 1. Melting: it becomes liquid 2. Freezing: it becomes Solid. 3. Evaproation: it becomes from liquid to gas. 4. Condersation: It becomes from gas to water 5. Sublimation: it becomes from solid into a gas. 8)A) Osmosis is therefore aspecial type of diffusion involving a solvent such as water. B)When 2 liquids are seperated by a semi-permeable membrane. If one solution is stronger than the other, water diffusesthrought the membrane into the stronger solution. 9)??????????

Chapter I

page8,9: Questions 1. +1 2. can be the same 3. are the same 4. I, II, III and IV 5. have a full outher level of electrons 6a. 6b. electrons: 116c atomic mass: 236d 1st shell= 2, 2nd shell= 8, 7c. lithium & sodium 8a. 8b. isotopes 8c. carbon12 carbon13 carbon14 8d. They have different amounts of neutrons. 9a. 80 9b. 3 bromine molecules: 81 & 81, 79 & 79, 79 & 81 9c. 79 and 81 Reason: They are different 10a. They are the amount of electrons that can be placed on the first 3 energy levels 10b. no, because the protons and the electrons are have alwaysto be the same. 10c. I) 23 II) charge: positive III) group:111a: to kill cancer cells 11b. radioactive because surgery doesn't work always 11c. it can kill healthy cells 11d. Carbon dating is a posibillity to find out how old something is. 12a. 912b. The mass number means: neutrons + protons 12c. protons:9 neutrons:10 electrons:9 13a. neutrons: 30 protons: 26, electrons: 26 13b. neutrons: 52 protons: 41 electrons: 41 13c. neutrons: 143 protons: 92 electrons: 92 14a. Isotopes have not the same number of newtrons but they have the same number of protrons. 14b.Chlorine 35: protons:17 neutrons:18 electrons:17 Chlorine 37: protons: 17 neutrons: 20, 16a. I) As (arsenic): 2,8,18,5 II) Bromine: (Br) 2,8,18,7 III) Sn (Tin): 2,8,18,18,8 IV) Xe (Xeon): 2,8,18,18,9 17a. A,F 17b. A 17c. C 17d. B,D 17e. Calcium 17f. 82, Lead
 * || Charge || Mass ||
 * protons || +1 || 1 ||
 * electrons || -1 || 1/1836 ||
 * neutrons || 0 || 1 ||
 * electrons || neutrons || protrons ||
 * 6 || 6 || 6 ||
 * 6 || 8 || 6 ||

Scientific Method III

**Question:**

Do different coloured liquids have different PH scales?

If you add colour to the water then the PH scale should change.
 * Hypothesis:**

<span style="display: block; font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; letter-spacing: 0px; line-height: normal; margin: 0px;">ID: The colour of the different liquids

ph scale
 * DV:**

The glass of water
 * Control Group:**

The glass of water with colour.
 * Experimental Group:**

Variables to control:

The amount of water and colour.


 * Scientific Method II**

Question: Can I hit a baseball better with a wooden or an aluminium bat?

Observation: What is the difference between a wooden and an aluminium bat? If you watch TV, most of people who play Baseball use a wooden bat. Why? If you see children playing baseball it is possible that one child hit the ball better than the other ones. The difference is often the bat.

Hypothesis: The pitcher is very important, because you don't find a pitcher who throws always the same speed and the same line. The normal professional way is using a wooden bat and a small, hard ball. I'm sure that the wooden is better than the aluminium bat, I have to try which one is better on an expereriment.

Material: - a wooden baseballbat (same size) - an aluminium baseballbat (same size) - a ball (always use the same ball) - thrower - batter - pitch - wardergun (to check the speed)

Procedure: 1. Choose a pitcher and a batter. 2. First, the batter has to use the wooden bat (normal, professional way) 3. The pitcher has to throw the ball to the batter. 4. The batter bats. 5. Change now the bats. 6. Throw and bat again. (Throw: If possible the same speed and the same line) 7. Compare the speed of the beat and the distance of the ball.

Independent Variables: Types of materials

Dependant Variable: Distance & speed

Experimental group: The wooden bat

Control group: The aluminium bat

Datatable: __WOODEN BAT ALUMINIUM BAT__ Speed x x Distance x x

With this table, you can check which bat is the better one. It is intelligent if you try the experiment more than one time, because if you try it only one time it is possible that this was happened happened by accident.

Marius 13-09-10

Homework: What is scientific method?

very good defininition of the scientific method. Definition: The Scientific Method describes how to get new knowledge or optimise existing knowledge by investigating. Good scientific method, well thought out The Steps: 1. Work with your expirience , remember and/or solve a problem. - Spell - experience 2. If no solution is known start a speculation and try to explain it by research. 3. Try to answer your question by considering consequences 4. Check and test the found consequences and also their opposite factors. few spelling mistake. spelling mistakes You should use word 2 check for spelling mistakes and grammar. Websites: Different websites describe the Scientific Method and its steps in different ways. Doing this research leaves the impression that there is no general definition or that anyone interprets the model as needed for his/her own scientific area(s). websites also discribe the hypothesis (theroy). You need to describe your websites difference. if you tak a little more about the differnence Explain more

Scientists: Scientists use the Scientific Method for theoretical or emperic studies. In both cases the scientists take notes of their work, their steps and their results. This systematic process is necessary that anyone can remember, understand and repeat the experiments - in an objective way. As the scientists publish all their information anyone can understand the several facts and proofs and what sources (e.g. former scientists) they used in addition. very nice explanition. My usage of the Scientific Method: A typical example how I use the scientific Method is homework. - What can I solve with expirience? - Start a speculation and try to explain it by research. - Try to answer by consideration including consequences. - Check and test the results

Sources: [|__wissenschaftliches-arbeiten.org__] [|__http://sciencebuddies.com/science-fair-projects/project_scientific_method.shtml__] [|__http://teacher.pas.rochester.edu/phy_labs/appendixe/appendixe.html__] [|__http://www.scientificmethod.com/__] [|__http://www.biology4kids.com/files/studies_scimethod.html__]

Marius Bernhardt 6th of september 2010 FREDDIE: well done, good effort Ryan did well good job =) joshua  Oliver good work  Apart from that little spelling mistake, Great job! - Oscar