Andrew+H.

=Welcome to my portfolio! On my portfolio you can see the different tools I have learned and used. Such as the Voki or Author Stream which is a place you can embed items. Also I have on here is a Dipity timeline with some pictures. I hope you enjoy my Wikispace and come back for more information.=

media type="custom" key="10613330" = = =Science is... Viewing our world and our surroundings. Also it is finding cures for medicene that we need and also looking at the bones in our bodys. Also is viewing the planets and stars that God made for us to view and do Science on them.= = = =In the real world scientist... Look at the viruses that the people have and try to cure such as the flu. Also they look at the plants and animals in their enviroments. Finally the look at the precepitation that will happen in that area and also the look at the different weather patterns that will affect the animal that there studying.=

=In science class we... Look at the Science from the past that the scientists looked at and learn it. We do experiments that find out what would you do if you combine this and that. Also the teachers want us to know what are enviroments are like on our planet.=

=The purpose of this site is... For us to view are other students of their work for help. Also it is for help such as thinking of an idea that you may not know. Finally we can tell our friends that they did a good job.=

Lab Safety Poster:

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==It all started in Egypt at 1400 B.C. and they used the first known weighing instrument. Then it goes to Lydia in 640 B.C. They weighed gold and silver with talents and minas. Then it goes into China in 200 B.C. At that time it says that the Chinese were the first nation to use decimal notation and thats the number system based on 10 digits. Then At Central Europe at A.D. 789 they made the first standerd unit of length. Then in A.D. at England and made an acre. Then in Germany at A.D. 1714 they made the first thermometer. Finally in France in 1983 they defined the meter. We need to look at the different systems made by different countries.==

media type="custom" key="10714078" Reflection on the Changes in State and Viscosity Lab (What I Learned....) I thought this lab was cool and I learned alot from it. In it I learned that when you put the tempurature up it sinks faster. When tyhe tempurature goes down it goes slower. Some liquids such as olive oil and honey makes the ball go slower. Water makes the ball go faster down. I think that we should do this more ofton then reading in the book.



media type="custom" key="10920740" I thought this lab was fun because you can change the volume, pressure, and temperature. In this lab I thought that the temp. and the volume were the same thing throughout the lab. This lab was very similar of this lab early this year.

= MELTING ICE =

**Intro**: In this lab we look at ice that melts from different temperatures. Also we use a rod to look at the temp. and also a digital one. This lab will take about 10-15 minutes at the most if you have errors.

**Problem:** The purpose of this lab is for us to look at the ice melt at the different temperatures of the water.

**Hypothesis:** I think when the temp. is high it will melt faster and when the temp of the water goes down it melts slower.

**Materials:**
 * 1) thermometer (digital one works best)
 * 2) 2 plastic cups, about 200mL each
 * 3) 2 stirring rods
 * 4) ice cubes
 * 5) warm water
 * 6) water at room temp.

**Procedure:**
 * 1) Make a data table in your notebook
 * 2) Fill both of the cups halfway with warm water one of them, then fill the other cup with room temperature at the same height
 * 3) Record the temperature of both waters
 * 4) Get two ice cubes about the same size
 * 5) Put one piece of the ice cubes into each cup, begin timming with a stopwatch. Stir each cup with a stiring rod until it melts.
 * 6) When one of the ice cubes have melted stop the time an record the temperature of the cup and the time.
 * 7) When the second cup with the ice cube melt record the time and the temperature.

**Data: DATA TABLE**
 * || beggining temperature || time to melt || final temperature ||
 * cup 1 || 23 C || 4.39 mins || 15 C ||
 * cup 2 || 42 C || 1.41 mins || 30 C ||
 * cup 3 || 18.8 C || 180 sec. || 13.6 C ||
 * cup 4 || 38 C || 128 sec. || 26 C ||

**Results: In this data table above talks about what the temp. was at the beggining and the final. I had 4 trials in this lab. The most sucessfull ones were Cup 2 and 4. Also It says how long it took the ice to melt in that beceific cup. Cup 2 and 4 were the most different temps. at the beggining and the end. They both are a difference of 12 deggres. The other two are smaller difference than the others. This says that cup 2 and 4 are a higher temperature than the others. So, this says that if you put a cold solid into a warm liquid the temperature gos down the most. When the other two is smaller in difference.**

**Conclusion:** My hypothesis was correct because the warm water with ice melted faster. The temp. of the water changed the most in cup 2 and 4 because it was warm water. The source of energy that helped it melt was lights. I think when you believe the ice has melted you can use a mini telescope and see when the excat time when it melted. Also I know believe is that when a hot liquid meets an cold solid, the hot liquid wins because of the temperature. It would be it the other way around. Thats what scientist say for right now and there seeing of how gas's can be an factor in this. Some source of errors could have been how long has the ice been out. Another one is if you stired it too much qand it caused the tempereature to move up or down.

**Discussion: Some factors that were changing were time, temp. and movement. For time you could of delayed it a second or put it before. The temperature of the ice was either partial melted or fully. Movement can be from if you were stirring the cup fastly or slowly. Also the therometer could have been off by a couple of degrees. Also we dont know how long the ice could have been out for. Also the hot water could have been either to hot or too cool to use it for that cup. Those were all of the factors that could of effected the process in this Ice Melting Expierement that we did in Science class.**



**This is a Bohr model for Lithium. In this lab we can put how many of nuetrons we want or protons we want. I put 4 nuetrons and 3 protons. I learned that you cant have three electrons on the first ring, but the next ring you can. This lab was cool and you can make different elements on the periodic table. If the atomic number is qan odd you put an extra nuetron in it. For even atomic numbers you just spilt it down the middle. I liked doing interactual thinngs like this activity.**

= Properties of Metal Lab = **Intro: In this lab we are trying to make steel wool magnetic soaking in an acid. We use vinegar and bleach to use this lab and it trys to acttract to the steel wool. This lab would take 24 minites if you do all of the data.**

**Purpose: What affect does the solution have on the steel wool?**

**Hypothesis: It would attract to the magnet in the two acids.**

**Materials:**
 * 1) **20mL chlorine bleach**
 * 2) **10mL distilled vinegar**
 * 3) **100mL beaker**
 * 4) **250mL beaker**
 * 5) **paper towels**
 * 6) **rubber band**
 * 7) **coffee filter**
 * 8) **small piece of steel wool**
 * 9) **safety goggles**
 * 10) **wide mouth jar or beaker**
 * 11) **water**
 * 12) **forceps**
 * 13) **lab coat**
 * 14) **magnet**

**Procedures:**
 * 1) **Pour 125 mL of water into a 250 mL beaker. Add 10 mL of distilled vinegar and 20 mL of chlorine bleach to the water.**
 * 2) **Take a small piece of steel wool and hold it in one hand. With the other hand hold the magnet near the wool. Record what happens.**
 * 3) **Drop the steel wool into the water-vinegar-bleach solution. Observe what happens.**
 * 4) **Record the changes every 4 minutes for 24 minutes.**
 * 5) **While the steel wool is reacting in the beaker, prepare a device for filtering. Place the filter paper into the mouth of the wide-mouth beaker. Use the rubber band to attach the filter to the top of the jar so that the filter hangs into the jar.**
 * 6) **After your final observation of the water-vinegar-bleach solution, slowly pour the steel wool and solution into the filter paper. let the liquid drain through. Add a little water to the beaker to rinse it and pour this into the filter as well. Use forceps to pick up the steel wool, hold it over the filter, and rinse it off with a small amount of water. Then, set the steel wool aside.**
 * 7) **When all the water has drained through the filter, carefully remove it from the top of the jar. Place the filter on several thicknesses of paper towels. once the material in the filter is dry, observe it carefully. Hold the magnet near the material and record what happens.**

**DATA TABLE:**
 * Minutes || What Happens ||
 * 4 mins. || @ 1 min. it changed colors. Overall almost one color ||
 * 8 mins || liquid turned to orange and steel wool dissoving ||
 * 12 mins. || lost it magnetic from the liquid ||

**Results: At one minute I saw that the liquid was turning a different color. Then at 4 minutes it was almost one color and that was orange. Then at 8 minutes the solution turned to orange because of acid makes the steel wool rust. Rust color is orange and thats why it is orange. Also at 8 minutes the steel wool was breaking down because of the solution. At 12 minutes the steel wool lost all of its magnetic from the liquid. I didnt record anything on because it would take to long.**

**Conclusion: My hypothesis was wrong because the solution sucked up the steel wools magnetic power. The solution had a bunch of affect on the steel wool such as the solution turned orange because the steel wool was in there. I think this has a big reaction cause it turned liquids and mostly dissoved. I thought the steel wool would stay magnetic because I thought the solution wouldnt do anything to it.**

**Discussion: Some possible errors can come from the solution. One error is that you put more of one thing and thas why it turned orange. Another error would be if we didnt put enough of a liquid in the solution and changed the outcome. Also my final rror would be you could of moved the steel wool in the expierement and cause it to chane colors. Those are the most possible errors that I can think of.**



Properties of Metals

There are different properties that are founded in a metal. There are different kind of metals on this Earth. The metals that are founded in Group 1 are alkali metals and they are reactive and they cant be combined. Another one is the alkaline Earth metals and they are founded in the Earth. Also another type are the transition metals. They are founded in groups 3-12. There are physical properties to an metal. They have to be classify by hardness, shininess, malleability, and ductile. Also there are chemical properties in a metal. Those metals are very reactive. Also there are alloys which are an mixture of metals. Bronze is an mixture of copper and tin. Most of the periodic table are metals. We can find metals all around the world an even in our classroom.

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media type="custom" key="11825354" =Alka Seltzer Lab=

==The purpose of the lab was for us to see how temperature affects a chemical reaction. Sometimes a chemical reaction takes a short time and for some it takes a long time. A chemical reaction is an process that substances undergo an chemical change that forms a new substance that were combined together. Some of the evidence was easy to see. One of them was the temperature and we saw how much the temp. has gone down or up. Also the color and at first it was clear but then it turned to orange also another evidence is the bubbling of the mixture. My original prediction was that the hot waters rate of reaction would be 3 times faster than at 0 C. We did 3 trials in all. In trial one there was less bubbling than trial 2. The temp. was 15.7 C. and the time was 69 seconds. Trial 2 was the fastest of all the trials. It took 18 seconds with the temp of 83.1 C. In trial 3 it took the longest with less bubbles in all. It took 204 seconds and the temp. 0.2 C. In the second trial I saw how the bubbles were more than trial 1 and trial 3. Also the temp. in trial 2 was the most out of them. If the temp. was 10 C it would pro bally take 60 seconds and if the temp was doubled to 20 C to 40 C the time would be 85 seconds. Also if I was using hot water it would take three times faster. If the liquid is -5 C. it would take a longer time. If we did lava it would take 1 second. The purpose of the lab was met by showing us how different liquids and temperatures affect the chemical reactions.==

Alka Seltzer Lab using Probes =Voice Thread=

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Popplet Activity on Compounds

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=== This popplet talks about Methane and its atomic structure, types of bonds, and history of Methane. This is a 2.0 web tool. Its a alkane and its a natual gas. Also its a colorless odorless gas. Methane would be the most abundant organic compound on earth. Also it can be classified as a greenhouse gas too and it has 4 equivalent C-H bonds. Some reactions that react in this would be combusion, steam reforming to syngas, and halogenation. Its uses are mainly used for fuel. Then the rest is used for heating and cooling homes. Also it can be used for stovetop burnner stoves. Methane isnt toxic and its very flameable. ===

Conclusion My hypothesis says that the liquid is more easily because solids would take more time to dissolving. My hypothesis was incorrect because both solids and liquids was the same for dissolving.Most of the class said that the solids would dissolve better than liquids. Now I know that water is polar and the molecules react in water by the molecules separate in water. I saw that for some of the substances you can see that there already dissolved. =**Fotobabble**=

@Andrew H.
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SCRATCH REFLECTION: In Stratch we did a animation on Isaac Newton and make him move. We had to follow the dircetions on a document. If you miss one step the whole thing would be messed up. Also you had to make the x's and y's so the person would move on the stage. It would be really cool at the end when it is finished. I want people to see this as a activity done by a student. If I had to make another scratch it would be a racing game or a action game. This interest me because you can make anything move. I want to do Scratch again because its really fun to do. I hope I can do this again high school.

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