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Wednesday, 22 February 2017

Final Project-Atmosphere

video

Earth's Atmosphere

ชั้นบรรยากาศของโลก ประกอบด้วย 4 ชั้นหลักๆ คือ โทรโพสเฟียร์ (troposphere), สตราโตสเฟียร์ (stratosphere), มีโซสเฟียร์ (mesosphere), เทอร์โมสเฟียร์ (thermosphere)
โทรโพสเฟียร์ (troposphere) คือ  ชั้นบรรยากาศที่เราอาศัยอยู่ อยู่ระหว่าง 10-12 กิโลเมตร อุณหภูมิของบรรยากาศชั้นนี้จะค่อย ๆ ลดลงตามระดับความสูง เป็นชั้นบรรยากาศที่มีอากาศหนาแน่นและมีไอน้ำมาก มีการเคลื่อนที่ของอากาศทั้งแนวระดับและแนวดิ่ง
สตราโตสเฟียร์ (stratosphere) คือ ชั้นบรรยากาศที่อยู่เหนือชั้นโทรโพสเฟียร์ จากประมาณ 12-50 กิโลเมตร เป็นชั้นโอโซน เพื่อไม่ให้รังสีอัลตราไวโอเลตลงมาสู่ผิวโลกมากเกินไป
มีโซสเฟียร์   (mesosphere)  คือ  ชั้นบรรยากาศที่อยู่เหนือชั้นสตราโตสเฟียร์ขึ้นไปจนถึงระดับความสูงประมาณ 50-80 กิโลเมตร อุกกาบาตเผาไหม้ในชั้นนี้
เทอร์โมสเฟียร์ (thermosphere)  คือ ชั้นบรรยากาศที่อยู่เหนือชั้นมีโซสเฟียร์ ความสูงมากกว่า 80 กิโลเมตรขึ้นไป แบ่งออกเป็น 2 ชั้นย่อยๆ คือ ไอโอโนสเฟียร์กับเอ็กโซสเฟียร์ โดยแสงเหนือเกิดขึ้นในชั้นนี้

P.S. I did it individually. Primrose didn't help me.

Saturday, 28 January 2017

Clouds

Clouds
 
          Cumulus clouds
                It appears big, white, and puffy. A cumulus cloud is easy to identify when you look at the sky. The shape looks flat on the bottom and rounded on the top, and the sky in between the clouds is generally blue. Cumulus clouds are lower in the atmosphere, about 1,000 feet from the ground.



          Stratus clouds 
                Low and have a uniform gray in color and can cover most or all of the sky. Stratus clouds can look like a fog that doesn't reach the ground. Light mist or drizzle is sometimes falling when stratus clouds are in the sky.



          Cirrus clouds
               Cirrus clouds are the wispy clouds that form at high altitudes. They are up so high they are actually made of ice particles. They are indicators of fair weather when they are scattered in a clear blue sky.


My group picture


My Essay
       My first year in Panyarat high school, I don't think that I have anything special for this year.
My favorite activity in science class is the fish and shrimp lab because I like doing experiment. It gives us new knowledge. Next year, I hope that my English will improve more.

Wednesday, 11 January 2017

Ball bearing lab


The Effect of Gravity on Speed

Introduction
Gravity provides a constant acceleration (force) on an object.  The effect is changed by using ramps at different angles. In this lab, you will find the optimal angle to maximize acceleration on a ball bearing so it travels the farthest and/or the fastest.  Friction is the opposing force created by the surface interactions.  Whenever something rolls due to a force, friction will oppose this force and slow it down.

Equipment needed:
Timer                                       Ramp                           Ball Bearing
Graph Paper (2)                       Ruler                                      

Procedure:
1.         Put the ramp against the seat of a chair.  Place the ramp and chair so that the ramp points towards the hallway.  Have your teammate on the other end of the hallway. 
2.         Place the ball bearing at the top of the ramp.
3.         Lift the ramp 20 cm and release the ball bearing
4.         Time how long it takes to travel  5 meters.
5.         See how far it will go..
6.         Repeat the experiment three times for each height then do 40 cm, 60 cm, and 80 cm.

Height
Time to travel 5 meters
Distance travelled
20
 4.38
 5 m
20
 4.41

20
 4.34

40
 5.87
 5 m
40
 5.46

40
 5.03

60
 5.27
 5 m
60
 5.49

60
 5.61

80
 7.19 
 44 cm
80
 7.51

80
 7.34


Observations:
 At the height 20 cm, the ball moved the fastest.
At the height 20 cm, 40, and 60, the ball moved the furthest.
At the height 80 cm, the ball moved the slowest.

Analysis
1.         Describe how the ball rolls off the ramp at each height—discuss the effect of bouncing or other factors.
           
 The ball will be bouncing more when the height increases.
20 cm = the ball goes straight.
40 cm = the ball has a little bouncing.
60 cm = the ball bounces more.
80 cm = the ball bounces the most.


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

5 m/ 4.34 seconds = 1.15 m/sec.
The factor that can improve the speed is the height.


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

No because the force on the ball is not balanced.

กำลังแสดง IMG_25600105_140245.jpg กำลังแสดง IMG_25600105_141849.JPG





Thursday, 3 November 2016

Bua - Global Warming

Blogger - Global warming
     cause, effect, cure
   
     Global warming is primarily a problem of too much carbon dioxide (CO2) in the atmosphere—which acts as a blanket, trapping heat and warming the planet.
A layer of greenhouse gases – primarily water vapor, and including much smaller amounts
of carbon dioxide, methane and nitrous oxide – acts as a thermal blanket for the Earth, absorbing heat and warming the surface to a life-supporting average of 59 degrees Fahrenheit (15 degrees Celsius).

     Some impacts from increasing temperatures are already happening. For example,
                  

  -Ice is melting worldwide, especially at the Earth’s poles. This includes mountain glaciers, ice sheets covering West Antarctica and Greenland, and Arctic sea ice.

      Other effects could happen later this century, if warming continues. For example,

   -Floods and droughts will become more common. Rainfall in Ethiopia, where droughts are already common, could decline by 10 percent over the next 50 years.

Some easy ways to stop global warming!!! (For example)
     - Replace Regular Incandescent Light bulb: Replace regular incandescent light bulb with compact fluorescent light (CFL) bulbs. They consume 70% less energy then ordinary bulbs and have longer lifetime.
      - Reduce, Reuse, Recycle: Reduce your need to buy new products or use less, resulting in a smaller amount of waste.
      - Turn Off the Lights: If you’re not using a room, there’s no need for the light to be on.

Thursday, 1 September 2016

Food chain; Bua

Food chain

Grass
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Ant
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Bird
Displaying 14139307_1763671467209073_922952237_o.jpgGrass is the producer.
Ant is the primary consumer.
Bird is the secondary consumer.

Wednesday, 24 August 2016

Bua;Symbiosis group project

About my group project;

My group is very good.Pooh and Sino are very diligent. When I did wrong, they were change it to be better.This is a advantage in this group.I think next time I can do better  because now, I can't use words and grammar very well in my own words, and I'm not good about computer but next time I'll try to do better.

Wednesday, 27 July 2016

About science class-Bua

My favorite activity in science class is the fish lab because I like to do an experiment.My least favorite activity in science class is when I learned about biomes because they are many biomes that we should understand but I can't remember about biomes much.

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