Wednesday, 26 March 2014

Science practical test

Straight lines for table

Headings with units and slash

Precise,accurate and no units for data

Independent variable on left dependent on right


Sectional diagram

Two-thirds of space given

Title of diagram and setup

Drawings of apparatus are proportional 

Sharp solid lines 

Label everything


Experimental error

Caused by human reaction time.

Not all water can be transferred from one container to another.

Wednesday, 12 March 2014

(Science) demonstration

The air is sucked out of the container, so the air pressure decreases. As the air pressure in the container is lower than the atmospheric air, the atmospheric air pushes on the lid and the lid is stuck.
As the pressure in the container decreases, the water boils. The low pressure in the container results in the atmospheric air acting on it, and the lid becomes hot.

(CCE) my ambition

I want to be a doctor. It has many benefits and I can help the sick people. I am also interested in science. The requirements are :

Bachelor of Science in Biology

You will need to earn a Bachelors of Science in Biology before enrolling into medical school. Some medical schools offer pre-med programs you can pass that will give you the necessary classes to enroll into medical school and prepare you for the MCAT (Medical College Admission Test). Common coursework needed to obtain a Bachelor of Science in Biology degree includes:

  • Biology studies
  • Chemistry
  • Human genetics
  • Physics

In order to become a doctor, you can choose to major in various undergraduate studies, but you will need to take a significant number of classes in science studies. Most accredited programs will require you to successfully complete undergraduate coursework in English, mathematics, and social sciences.

Medical College Admission Test

Before you can enroll into a medical school, you will need to pass the MCAT, which is a multiple-choice test that covers biology, physical science, verbal skills, writing abilities, and critical thinking skills. Most medical universities utilize your scoring to determine your acceptance for admission.

Doctor of Medicine

Medical schools require you to undergo both classroom education and clinical training, which takes approximately four years to complete. In your first two years of schooling, you will devote your time to laboratory experience and book study, which will prepare you to successfully diagnose and treat illnesses and injuries. Upon completion of your second year, you will need to pass the first section of the USMLE (United States Medical Licensing Examination) through the National Board of Medical Examiners.

During your last two years in medical school, you will obtain your clinical experience and practical training by working under an attending physician at hospitals and clinics. Upon completion of your fourth year of schooling, you will take the second licensing test through the National Board of Medical Examiners, which will allow you to begin your residency training.

Medical Residency

Taking between three to seven years, medical residency focuses on completing your practical training and experience in the medical environment. You can choose to undergo a post-residency fellowship if you have sub-specialized in a specific sector, such as geriatric, vascular, or internal medicine.

Licensing Requirements

Each state holds its own licensing requirements, but most require you to complete a minimum of one year in a residency program and the completion of your board certification. Once you have met your state’s licensing requirements, you can obtain your medical licensure and can legally practice as a medical doctor.

Thursday, 6 March 2014

(Science) experiment on flooding

Science experiment onflooding(Teckweng,Junjie,Gabriel,Zhixin,Adon)

Introduction of project:

There has been a severe flood threat and there are three types of soil,top soil,clay and sand. We are in a race against time to control and prevent the damaging effects of a flash flood. Only one of the sections can be completed by the river engineers given the limited time.


Aim of project:

Find out which type of soil is best at preventing water from going through

Hypothesis and variables

Hypothesis: the best type of soil to be used in the sand bags to build the levee is clay.


Independent variable: type of soil


Dependent variable: 

Volume of water in the beaker at the end of the experiment.


Constant

Type of water

Volume of water poured in each set-up

The mass of soil for each set-up

Identical set-ups for the experiment except for the type of soil


Conclusion: the best type of soil used in sand bags to build the levee is clay.The set-up with clay has the least volume of water collected in the beaker at the end of the experiment.This proves that clay slower down the rate at which the water is passing through.


Question 2.

Hypothesis:We should build the levee for section B as the soil used to build he levee for section B is clay soil hence the levee will be able to prevent the most amount of water from going through.


Conclusion:As the best type of soil used to be build the levee is the clay soil, we will build section B first. As the soil used to build the levee for section B is the clay soil and the damage will not be as serious.


Carrying out experiment:

Materials needed

1.3 plastic bottles

2.400g of sand, topsoil and clay soil

3.piece of fine mesh

4.250ml beaker

5.100ml measuring cylinder

6.electronic balance

7.stopwatch

8.hand lens

9.gloves,plastic spoons and scissors

10.soil testing device


Steps for conducting the experiment

1)Pour 200 g of each type of soil into each of the 3 soil- testing device

2)Pour 200ml of water into each of the soil- testing device at the same time.

3)Measure the volume of water in each beaker after 2 minutes.

4)Record down the result

5)Clear the wet soil and water in the beaker and the soil- testing device

6)Repeat step 1 to step 5 for the second time.

7)Compare both results and get the average result

8)compare the end result with the hypothesis.  

9)Make a conclusion 


Hypothesis:

Clay will allow least water to pass through and is the best type of soil to be used in the sand bags.

Experimental design

 

Pictures of us conducting the experiment


 Starting of the experiment


During the experiment 

 

Getting results

 

Results recorded

Analysis and discussion of results

The clay soil is the most compact and there will be least air holes in the soil. Therefore, the water will pass through the soil at a slower rate compared to the top soil which has the most number of airholes in the soil.

 

Further research and study

What should the sandbags be made of?

A sandbag (floodbag) is a sack made of hessian/burlap, polypropylene or other materials that is filled with sand or soil and used for such purposes as flood control, military fortification, shielding glass windows in war zones and ballast.

Advantages are that burlap and sand are inexpensive, and that the bags can be brought in empty and filled with local sand or soil.

 

Reference

-http://en.wikipedia.org/wiki/Sandbag

 

Duty list

-Loh TeckWeng (finished the report,helped with the science experiment)

-Gabriel Tan WeiYang( helped with the science experiment and collation of results and pictures)

-Cai JunJie(helped with the science experiment and science report)


Wednesday, 5 March 2014

(Science) experiment on flooding

Science experiment onflooding(Teckweng,Junjie,Gabriel,Zhixin,Adon)

Introduction of project:

There has been a severe flood threat and there are three types of soil,top soil,clay and sand. We are in a race against time to control and prevent the damaging effects of a flash flood. Only one of the sections can be completed by the river engineers given the limited time.

Aim of project:

Find out which type of soil is best at preventing water from going through

Hypothesis and variables

Hypothesis: the best type of soil to be used in the sand bags to build the levee is clay.

Independent variable: type of soil

Dependent variable: volume of water in the beaker at the end of the experiment.

Constant: type of water

Conclusion: the best type of soil used in sand bags to build the levee is clay.

Question 2.

As the best type of soil used to be build the levee is the clay soil, we will build section B first. As the soil used to build the levee for section B is the clay soil and the damage will not be as serious.

 

Carrying out experiment:

Measuring instruments needed

1.3 plastic bottles

2.400g of sand, topsoil and clay soil

3.piece of fine mesh

4.250ml beaker

5.100ml measuring cylinder

6.electronic balance

7.stopwatch

8.hand lens

9.gloves,plastic spoons and scissors

10.soil testing device

Steps for experiment

1)Pour 200 g of each type of soil into each of the 3 soil- testing device

2)Pour 200ml of water into each of the soil- testing device at the same time.

3)Measure the volume of water in each beaker after 2 minutes.

4)Record down the result

5)Clear the wet soil and water in the beaker and the soil- testing device

6)Repeat step 1 to step 5 for the second time.

7)Compare both results and get the average result

8)compare the end result with the hypothesis.  

Hypothesis:

Clay will allow least water to pass through and is the best type of soil to be used in the sand bags.

Experimental design

 

Pictures during experiment

After experiment

Before experiment

 

Getting results

 

Results

Analysis and discussion of results

The clay soil is the most compact and there will be least air holes in the soil. Therefore, the water will pass through the soil at a slower rate compared to the top soil which has the most number of airholes in the soil.

 

Conclusion

Question1. The best type of soil to be used in the sand bags to build the levee is the clay soil.

Question2. The section that should be built first is section B.

 

Further research and study

What should the sandbags be made of?

A sandbag (floodbag) is a sack made of hessian/burlap, polypropylene or other materials that is filled with sand or soil and used for such purposes as flood control, military fortification, shielding glass windows in war zones and ballast.

Advantages are that burlap and sand are inexpensive, and that the bags can be brought in empty and filled with local sand or soil.

 

Reference

-http://en.wikipedia.org/wiki/Sandbag

 

Duty list

-Loh TeckWeng (finished the report,helped with the science experiment)

-Gabriel Tan WeiYang( helped with the science experiment and collation of results and pictures)

-Cai JunJie(helped with the science experiment)

-Adon Yap(helped with the science experiment)

-Liu Zhixin(helped with the science experiment)

 

 


(CCE) Cyberwellness

Cyber wellness is: 

Being safe in the cyber world, 

Respecting others online,

Not being too addicted to the net,


I think we should be like an eagle with sharp eyes to filter what is good and what is bad on the internet.

We have to spot danger and know how to be safe.