Natasha

media type="custom" key="10631228"

like so much else in science, systems of measurement developed gradually over time in different parts of the world. The egyptians were one of the first people to develope a weighing instrument then, merchants in the middle east used units of weight to be sure that they recieved all there correct amount of gold and silver. years past and in 200 bc. the first emperor of china, set standards for weight, lenghth, and volume.then england, central europe, england, germany, and france. althought scientist rely on other measurement units for many different purposes.

What is Science?....science is the studies of different substances.

In the real world scientist... help people solve problems like cancer.

In science class we.... look at things through the eyes of a scientist.

The purpose of this site is.... to expand our learning.

Here is My poster



viscosity of a liquid



In class we did a lab on viscosity, i learned that when you heated a liquid the viscosity of it moved faster. in this lab when you added heat to a liquid and added heat it moved differently then some other liquids. i would do this lab again because it was fun and i learned a lot.

Reflection on the Simulation on Gases

media type="custom" key="10941028" in class we did a simulation on gases we learned that if you added more pressure and mad the spase smaller it will explode. it was like how we did the potatoe guns the pressure in the small area made one end of the gun shoot a potatoe

Lab refelction on ice: Introduction: Today we did a lab on the melting melting point of ice. we used tables and also thermometers.

Problem: How does the temperature of the surroundings affect the rate at which it melts?

Hypothesis: that the ice in the warmer solution is going to melt faster that the room tempurature solution.

Materials: Thermometer 2. 2 plastic cups about 200 ml each 3.2 stirring rods, preferably plastic 4. Ice cubs about 2cm on each side 5. Warm water about 40-45 degrees Celsius 6. Water at room temperature 7. Stopwatch or timer

Procedure: 1. in your notebook Make a data table 2. Fill a cup up halfway with warm water [about 40-45 degrees] Fill the second cup up with the same depth at room temperature water. 3. Recrod the exact temperature of the water in each cup 4. Obtain 2 ice cubes that are close to possible in size 5. Place one piece of ice in each cup. Begin timing the stopwatch. Gently stir each cup with a stirring rod until the cubes melt. 6. Obesrve both ice cubes carefully. At the moment when ice cube had completely melted record the time and the temperature of the cup. 7. Wait for the second ice cube to melt Record its melting time and the water temperature.

Data and observations: I realized that when you increase the temperature of the water the faster it melts, and when you decrease the temperature the slower it melts. Here is my graph to prove it. Results: I got the exact results that I thought I would get. They came out perfect I like to believe that my hypothesis was correct. I got the conclusion that the higher the temperature the faster it melts. The lower the temperature the slower it melts.
 * || Beginning temp || Time of melting point || Final temp ||
 * Cup 1 || 24degrees Celsius || 4:05four minutes 39 seconds || 16 degrees Celsius ||
 * Cup 2 hot water || 42 degrees Celsius || 2:10 seconds || 30degrees Celsius ||

Conclusion: i learned lots of thing during this lab. i learned that when you put ice in 2 different tempuratured waters that the out come was ddifferent. my hypothisis was correct.


 * || Beginning temp || Time of melting point || Final temp ||
 * Cup 1 || 43.3 degrees Celsius || 5:00 + four minutes || 21..4 degrees Celsius ||
 * Cup 2 hot water || 22.2 degrees Celsius || 5:00+minutes || 10 degrees Celsius ||

Discussion: one thing that my group did wrong was toutching the cup.. You use this activity in your every day life because you have to see the affects of rising temperature, and temperature decreases.but we had lots of fun doing this lab and learned.


 * WORDLE on METALS **



Out of all the families or groups on the periodic table metal are the most reactive.

The most reactive metals are found in groups 13 through 16 in the center. Metals have many physical properties,like being ductile,malleable,and being good energy conductors. Also metals are located to the left of the zigzag or the crack.

alka seltzer lab The pupose of this lab was to collect data and see if tempurature can affect time of reaction the chemical reaction was when you added an alka seltzer tablet to different tempuratured water and the time was affected. the evidance of it acktually being a chemical reaction whould be when you timed the disoving of the tablet and the tempurature affected that time. my origanal prediction was that the different tempuature would make it 2x faster the fist test we did in room tempurature water it was 17.1 degrees c 67 seconds and the tablet disolved on the bottom of the glass the second test we did in ice water 3.1 degrees c and 158 seconds the tablet also disolved on the bottom the third test we did in hot water 88.6 degrees c and 20 seconds it disolved fast and it disolved on the top of the glass As the temperature increases, the rate of reaction goes faster. my hyypothisis was incorrect but some times predicting wrong makes it fun media type="custom" key="12373488"

Popplet on Pentane sumary in science class we were given a compound. my compound was pentane a flamable gass. c5h12. kate also got pentane as her compound i turned in my molecule diarama thing early so it benifited kate she got to see what hers would look like. we did this project probably becasuse we could learn how to use a poplet and make it. this was a fun project

elements

in class we went on this website about elements and bond i think it was a fun way to learn about bonds and i think it helped us learn more about saring bonds and elements. i recomind this to other grades and not only mine.

conclution:
 * indicator observations **
 * the purpose of this lab was to observe and find indicators. an indicator was the cabbage juice. the control was the water to delude it. the color changed based on what was put in it.the purpose of the lab was met because we observed an indicator but we also had difficulties with our probes because our numbers were incorrect. **


 * substance || color || number || acid / base ||
 * water || light purple || 6.19 || neutral ||
 * baking soda || blue || 6.25 || base ||
 * vinegar || pink || 3.75 || acid ||
 * lemon juice || light pink || 3.40 || acid ||
 * ammonia || purple but should have been blue || 6.28 || base ||
 * apple juice || purple || 4.40 || neutral ||

fotobabble

media type="custom" key="16202720"

Scratch media type="custom" key="18162880"d scrach was a fun project i would like to do it again we got to learn how to program and we put some info about sir isaac newton in it. i liked watching other peoples videos because they used the same tool but made something different and interactive i would recomend this tool to others not just for science.

dipity timeline media type="custom" key="18623506" dipity was a fun way to do a time line it looks better than any other timeline tool. even though i had its problems loading and being slow, luckley i had my teacher there to help mrs delucia

For my biocube experiment my scientist was copernicus he was known for many things like His [|heliocentric model], with the Sun at the center of the universe, demonstrated that the observed motions of celestial objects can be explained without putting Earth at rest in the center of the universe. His work stimulated further scientific investigations, becoming a landmark in the [|history of science] that is often referred to as the [|Copernican Revolution]. I would use the bio cube again i think it is a great tool to help you learn and you could even use as a study tool.