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Earthquake Waves
Article posted May 6, 2009 at 09:17 PM GMT0 •
comment • Reads 238
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There is 2 major types of earthquakes a P-wave that is called a parallel wave because it is the fastest and shakes back and forth. P-waves can pass through solids and liquids.
The other is S-wave it is called a perpendicular wave because it moves up and down and causes the mos damage to buildings. S-waves can only pass through solids.
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Article posted May 6, 2009 at 09:17 PM GMT0 •
comment • Reads 238
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Energy Transformations
Article posted May 6, 2009 at 09:10 PM GMT0 •
comment • Reads 124
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Radiation is the most major type of energy transfer because it comes from the sun and gives the plants the ability to photosynthesise. Then it can become convection and conduction energy transfer. So radiation is my favorite transfer.
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Article posted May 6, 2009 at 09:10 PM GMT0 •
comment • Reads 124
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Plate Tectonics
Article posted May 6, 2009 at 09:06 PM GMT0 •
comment • Reads 177
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My group had the Australian and India plate. It is one of the strangest plates because we are not sure if it is even its own plate because it does not have a whole lot of boundries. On one of the sides it does not have any consistent data of a boundry. We learned that boundries can vary from huge earthquakes to the newest land.
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Article posted May 6, 2009 at 09:06 PM GMT0 •
comment • Reads 177
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Float your Boat
Article posted March 16, 2009 at 11:28 PM GMT0 •
comment • Reads 80
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In this lab we had to make a bunch of 12x12 centimeter boats and see how many pennies they would hold before they sank. Our group chose to raise the height of the walls by one centimeter each new boat after three trials of each boat. The average for boat one with one centimeter walls held 18.3 pennies. For boat two with two centimeter walls the average of pennies held was much higher at a average of 48. But for boat three with three centimeter walls the average went down to 35. This happened I believe because the walls were to high and the surface couldn't hold as much as if the walls were smaller
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Article posted March 16, 2009 at 11:28 PM GMT0 •
comment • Reads 80
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Density Dilemma
Article posted March 16, 2009 at 11:20 PM GMT0 •
comment • Reads 46
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We had to get information for a webquest that was about 5 goldsmiths that had to make the king a solid gold crown. But all the goldsmiths didn't use all the gold, only one goldsmith used all the gold and we had to find out who was honest and used all the gold. Crown four was the real crown and weighed 3474 grams and was 180 cc with a density of 19.3 g/cc. We also had to write a letter to the king telling him what crowns were fake and what was the real crown.
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Article posted March 16, 2009 at 11:20 PM GMT0 •
comment • Reads 46
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Temperature and density
Article posted March 16, 2009 at 11:12 PM GMT0 •
comment (1) • Reads 55
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I learned that when you get a liquid or gas hot it will float higher so if you had two bottles and put hot water in one and cold in another and put the cold on top of the hot bottle of water the hot water would rise to the top bottle, this is because hot water is less dense than cold water and will float to the top.
I also learned that when you heat an object up it will expand because when Mr.G had a rod it fit before heated it up, then he got it hot and it couldn't fit. So when things get hot they will expand.
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Article posted March 16, 2009 at 11:12 PM GMT0 •
comment (1) • Reads 55
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Floating crayon lab
Article posted March 16, 2009 at 11:05 PM GMT0 •
comment • Reads 40
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Our teams problem that we chose was "How does the amount of salt affect the order in which the crayons will float?"
Prediction: As the amount of salt changes the order in which the crayons float because the salt should make the less darker colors float faster.
Conclusion: When I changed the amount of salt by adding one spoonful every time, the water became more dense and made more crayons float up. The blue crayon came up first in the first spoonful of salt, then yellow in the second spoonful with the first spoonful still in the beaker, then green with the third spoonful of salt added. So the least dense crayon would be blue, then yellow, and then green. My prediction was wrong because i thought that the brightest color yellow would be the first to come up, then green because it is brighter than blue, and blue would be last. I believe that this happened because blue is a less dense wax than than yellow, and green is a compound color of blue and yellow so I think that's why green was last. We did not have any problems in our lab. A question I thought of was what would happen if you used sugar instead of salt?
The order that the crayons floated:
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Article posted March 16, 2009 at 11:05 PM GMT0 •
comment • Reads 40
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Weathering and Erosion
Article posted January 26, 2009 at 10:47 PM GMT0 •
comment • Reads 343
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I learned that weathering is where it breaks down the rock with rain, water, cold, and heat. There is physical weathering, chemical weathering, and mechanical weathering. Erosion is where water washes away broken down rock and takes it away to wherever the water is going. A solution for erosion is planting trees so it strengthens the soil and you can put nets on the dirt so it gets caught
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Article posted January 26, 2009 at 10:47 PM GMT0 •
comment • Reads 343
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heat transfer
Article posted November 20, 2008 at 02:37 AM GMT0 •
comment • Reads 491
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Conductive heat transfer- Conductive heat transfer is heat transfer through an object to an object. The molecules bounce and hit each other and give off some of there excitement to another.
Convective heat transfer- Convective heat transfer is heat transfer through a liquid or gas(like air). Say you are warming your house through a open chimney flue, it will lose warm air and because it will go up and cold air will come into the house. Insulation keeps warm air from escaping as easily.
Radiation heat transfer- Radiant heat transfer happens with objects that are not touching. The sun giving the earth warmth is radiant heat transfer because it cannot be conductive or convective heat transfer because there are no gases or objects for it to transfer through so it transfers rays to the earth
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Article posted November 20, 2008 at 02:37 AM GMT0 •
comment • Reads 491
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7 random facts
Article posted October 15, 2008 at 09:22 PM GMT0 •
comment (3) • Reads 110
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1.I am part Eskimo.
2.I play football.
3.I play baseball.
4.I play basketball.
5.My favorite restraunt is King Wok's Buffet.
6.I am Irish.
7.I was on the undefeated football team last year.
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Article posted October 15, 2008 at 09:22 PM GMT0 •
comment (3) • Reads 110
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