วันพุธที่ 14 กุมภาพันธ์ พ.ศ. 2561

electric charge brighter



Launch LabHow can you bend water?

1. Infer Why did you rub the balloon on your sweaterPredict what might have happened if you simply touched the balloon to your sweater instead of rubbing it.
Ans because when you rub a ballon against your sweater, the balloon will transfer electron from the sweater, which leaves the sweater positively harged and the balloon negatively charged. If you simply touched the balloon to your sweater instead of rubbing it, there are not any charged transfer, because there are no friction occur
2. Key ConceptWhy do you think the balloon interacted the way it did with your sweater and with the stream of water?
Ans because the charge is not equal therefore, it needs to make contact to balance itself.(equivalent)





















วันพุธที่ 10 มกราคม พ.ศ. 2561


Stand in front of the library Turn to 0o and walk 2 steps
Turn right to 83o and walk 18 steps
Turn left 350o, walk 3 steps, walk 11 ladder step and walk another step
Turn left to 270o and walk 3 steps
Turn left to 170o, walk 1 step, walk 8 ladder steps and walk 3 steps
Turn left to 80o and walk 3 steps
Turn left 350o, walk 1 steps, and walk 12 ladder steps
Turn left to 270o and walk 3 steps
Turn left to 170o, walk 1 step, walk 8 ladder steps and walk 5 steps
Turn left to 80o and walk 40 steps
Turn right to 170o and walk 40 steps`

Turn to 85o

วันพุธที่ 20 กันยายน พ.ศ. 2560

Procedure

  1. Put milk into a bag with some air in it.
  2. Put it in a bucket and cover it in ice.
  3. Put salts over the ice.
  4. Shake the bucket.
  5. If it is half-frozen, put cookies and jellies in.
  6. Continue shaking.
  7. Enjoy

Results

From a liquid milk and some cookies turn into a delicious cup of ice cream by crystallization.

questions

1)  why do we add salt to the ice?

because we need to slow down ice melting and ice colder. 

2) why do we add the cookies and other things, only after the milk has frozen slightly?

because it is a heat capacity which will slow the process down.

3)  what are two factors that affect the freezing you think?

1.Air..

3.salt 

4)  why do you need a bit of air in the bag?
because spaces make all the milk touch the ice.

วันพุธที่ 7 มิถุนายน พ.ศ. 2560

science skill practice

Calculate the density of each of your mineral samples. How could you use the densities to identify the minerals?
Answer same density of stone mean it is the same minerals and different density of minerals mean different types of minerals

Key Concept Would density or color be more useful in identifying a particular mineral? Explain your answer.
density is more accurate than color and color can be vary

stone lab





1. I measure the mass of the rock
2. I measure the volume using Archimedes's principle by using the excess volume from the immerse water
3.Mass divided by volume


Sample number
Weight grams
Volume ml
Density  g/ml
3
25.6 g
25
1.6
5
45.5 g
15
3.07
2
183.3 g
50
2.7
12
37.7 g
47
0.9
6
110.1 g
50
2.2
11
98 g
16
6
9
193 g
75
2.2
7
258 g
66
4
1
125 g
20
6.25

วันพุธที่ 24 พฤษภาคม พ.ศ. 2560

gifpal work


human can effect environment by first, human pull trash into the river that's mean it make the river has less oxygen and make fish die. Second human use more car, that's mean more car make more carbon dioxide in  air and make acid rain, that destroy the environment.Third is human destroy the tree for make home or sale 
,that's make the food chain destroy and water flooding.