วันพุธที่ 14 มิถุนายน พ.ศ. 2560

7. Calculate the density of each of your mineral samples. How could you use the densities to identify the minerals?
   Ans: Density won't change so if you calculate again it will be same density.


8. 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.

วันพุธที่ 7 มิถุนายน พ.ศ. 2560

Stone Lab

A stone lab that measuring about Mass, Volume and calculate density. When you reading a meniscus, you should correct line of volume. read in the middle line of a meniscus.

วันพฤหัสบดีที่ 25 พฤษภาคม พ.ศ. 2560




Impact of Society

   The environment that affect to society has many, but today i'll example 3 things : 1. Put a garbage into river
                              2. Cut a tree
                              3. Burn a forest
Oil spills is take off the liquid petroleum hydrocarbon to the environment.
Nuclear power is electric or motive power generated by a nuclear reactor.
Coal pollution is a system / technology that seek to mitigate the pollution.
Acid rain is a broad term that includes any form of precipitation with acidic components.

   

วันพุธที่ 18 มกราคม พ.ศ. 2560

Clouds
Clouds are classified according to 3 criteria 
- Altitude
- Shape
- do they make precipitation

Cirrus - Thin, featherlike clouds. high in atmosphere. 
Stratus - Flat
Image result for stratus clouds
Cumulus - White and fluffy, good weather
Image result for cumulus clouds
Nimbus - Rain cloud
Image result for Nimbus clouds

Nimbostratus - Dark, Towering cloud that are also called                                                             " Thunderheads "

Image result for nimbostratus clouds

This is my group pictures.


Writing Assesment
Since i came to school on the first day. I didn't have any friends. But i can adapt to friends very fast. Now i have many friends and they can give me good advice. 



วันจันทร์ที่ 9 มกราคม พ.ศ. 2560

The effect of gravity on speed

1. Describe how the ball rolls off the ramp at each height-discuss the effect of bouncing or other factors.
Ans In case of small angle of the ramp. At starting position, the level of ball is not height. After we release the the ball. it roll off slowly at the begining and the speed will increase continuously. When it touch to the floor. The ball has some bouncing before change the direction to the horizontal. 
    If we increase the angle of the ramp. The level become higher.
the speed is faster when it touch to the floor. The ball has more bouncing before change the direction to the horizontal. 
    If we try to drop the ball at right angle of the ramp. The level become highest. Speed is fastest when it touch to the floor. The ball bouncing in the vertical direction.

                                                                                                        
2. Discuss what is fastest speed reached and any factors that could improve this.
Ans Speed of the ball is related to the height. We can increase the speed ny increase the height.

3. Does the ball travel in a straight line, why or why not?
Ans :  Most of the ball travel in straight line which there are 3 forms as follows;
1. Vertical direction because of gravity force.
2. Incline direction because of the angle of the ramp.
3. Horizontal direction because of it's guided by the floor.
However, there is not straight line traveling. It's curve direction during bouncing because of it combine between vertical and horizontal direction. It's called projectile.