Wednesday, September 20, 2017

Lab: Crystalization of Milk





























Procedure
1. Put the milk into the plastic bag with some of the air but not too much.
2. Put ice and salt in to the basket.
3. Shake the ice until the milk has been freeze.

Result
The milk is freeze as an ice cream.

Questions
1) Why do we add salt to the ice?
Salt make the milk freeze faster.2) Why do we add the cookies and other things, only after the milk has frozen slightly?
If we add them at first, the milk gonna be unfreeze. But if we add when the milk already frozen all of it, them gonna be unmixed.3) What are two factors that affect the freezing you think?
Ice and salt.4) Why do you need a bit of air in the bag?
If you have no air in the bag, the big gonna be freeze.

Friday, July 28, 2017

Rock Lab

1. 


Weight (g.) : 125.9
Volume (ml.) : 46
Density (g/ml) : 2.737

2.
Weight (g.) : 135.9
Volume (ml.) : 57
Density (g/ml) : 2.737

3.











Weight (g.) : 46
Volume (ml.) : 50
Density (g/ml) : 0.92

5.

Weight (g.) : 114.7
Volume (ml.) : 450
Density (g/ml) : 2.294

6.

Weight (g.) : 110.6
Volume (ml.) : 50
Density (g/ml) : 2.21

7.

Weight (g.) : 243.8
Volume (ml.) : 68.5
Density (g/ml) : 3.559

9.
Weight (g.) : 135.
Volume (ml.) : 46
Density (g/ml) : 2.737

11.

Weight (g.) : 98.5
Volume (ml.) : 50
Density (g/ml) : 1.97

12.
Weight (g.) : 146.94
Volume (ml.) : 50
Density (g/ml) : 2.94

Wednesday, May 24, 2017

Impact of society on environment
              
               People use a lot of environment but people don't take care them. People use them more than they have, make pollution that disturbs the growth of living thing and destroy some space to make the factory or store.

               For now, the environment is hard to find.

Coal Pollution
              
               Coal contains sulfur and other elements, including dangerous metals such as mercury, lead, and arsenic, that escape into the air when coal is burned. Burning coal also produces particulates that increase air pollution and health dangers. Burning coal emits large amounts of carbon dioxide into the atmosphere. Air pollution from coal-fired power plants includes sulfur dioxide, nitrogen oxides, particulate matter (PM), and heavy metals, leading to smog, acid rain, toxins in the environment, and numerous respiratory, cardiovascular, and cerebrovascular effects.

Wednesday, February 1, 2017

Essay

This year is my 1st year at Panyarat High School. I think I don't have anything special in this class but I think I do worse in this class. I like the fish and shrimp activity the most. Next year I want to get the better score in Science.

Wednesday, January 18, 2017

Clouds


Cirrus : It has  a shape like the thin feather.


Cumulus : It has fluffy shape.


Stratus : It is flat and cover the sky.

Image result for stratus

This is my group member :

Speed Lab

Analysis

1. Describe how the ball rolls off the ramp at each height—discuss the effect of bouncing or other factors.

If the height is too high, the ball will get bounces on the floor. So 20cm .is the least height that makes the ball travel faster and further.

2. Discuss what is the fastest speed reached and any factors that could improve this.

At 20cm. height, the ball rolls faster and further than other height. I think 20cm. height can roll the ball faster because this height has not too high and too low slope.

3. Does the ball travel in a straight line, why or why not?

The ball didn't travel in a straight line because....
  • When the ball bounces on the floor
  • When we let the ball roll, we didn't set it on the straight way.
  • The floor didn't straight