Wednesday, November 15, 2017

Color and light lab

Color and light lab

Materials :
  • flashlight
  • red filter
  • blue filter
  • yellow filter
  • green filter
  • purple filter
  • white paper
Activity A: color addition
  1.  r+g, r+b, b+g
  2. work with another group—put a color paddle over the flashlight, shine on white paper—so a red, a green, and a blue
 Activity B: color subtraction
  1. view white paper through color paddles—record results
  2. view colored objects through color paddles
Filter = Shine light on every filter(s) on white paper and  Put each filter to each flashlight and shine it on white paper
  1. red = red
  2. blue = blue
  3. green = green
  4. yellow = yellow
  5. purple = purple
  6. red+green = brown with yellow and yellow with a lit orange
  7. red+blue = purple and magenta
  8. blue+green = blue with some green
  9. blue+green+red = black and white

Thursday, September 14, 2017

crystallization of milk


crystallization of milk

1. Add milk in a bag
2. Put bag in a box
3. Put ice on top of the bag
4. Add salt on top
5. Make it be semi-solid
6. Add topping in the bag
7. Repeat 2.- 4. again and finish.
Questions
1)  Why do we add salt to the ice?
Ans. Salt makes exotherm.
2)   Why do we add the cookies and other things, only after the milk has frozen slightly?
Ans. If you add before freezing, milk will soak topping.
3)  What are two factors that affect the freezing you think?
Ans. The temperature of milk and Temperature of Ice. 
4)  Why do you need a bit of air in the bag?
Ans. Milk move easier.

Wednesday, June 14, 2017

Writing assessment


 The industry made carbon dioxide in the air then if you have many carbon dioxide will make global warming.The global warming is a cause of acid rain. Acid rain will destroy the building and so many things in society.When you want to make energy from coal, it will create air pollution to place that nearby you.


Wednesday, June 7, 2017

Skill Practice



- Calculate the density of each of your mineral samples. How could you use the density to identify the minerals?
Ans. Density won't change so if you calculate again it will be same density.
- Key Concept Would density or color be more useful in identifying a particular mineral? Explain your answer.
Ans.  The density is easier than color to identify the minerals. Because color can be same but different types of minerals.





Density Lab


Density Lab














Wednesday, February 22, 2017

writing assessment

In this year, I did so many things in Kru Gary class. Kru Gary taught me about science in this year. He is my favourite science teacher. Next year, I will study harder for science to be a medical doctor in the future like my dad. This year Kru Gary's class always fun. I love this class. I want Kru Gary to teach me in next year. He made me like this subject. His fantastic word is "No pressure". He always says that in every class.

Thursday, February 2, 2017

cloud lab

This is cirrus cloud

This is Cumulus cloud

The last one is Stratus cloud