Turbo Charge Learning Jump Start

A 2 hours talk by Webster Ku, title: Turbo Charge Learning Jump Start.

Here is a promo video published by the speaker.

All the form 6 students were to attend this talk. Students seemed to enjoy themselves and had fun with the speaker Webby. Students were said to be motivated to study smart, with the skills suggested and led by Webby, a funny speaker with his optimism and jokes. Grateful to have the time spent with Webby.

Determination of the Percent Oxygen in Air

The experiment for today is determination of percent oxygen in air. Here is a video  as reference.

[Source: http://www.youtube.com/watch?v=xQNl2EdteDE ]

What’s going on?

Air is composed of Nitrogen - about 78%, Oxygen

about 21%, Argon about 1% and other gasses.

These gasses compose 100% of the air so they exert

100% of the pressure. IN the test tube, at the

beginning, there was the same pressure inside the

test tube as outside. As the steel wool started to

rust*, the oxygen was taken out of the air, therefore

the pressure was reduced. Over time, the pressure

was reduced by the percentage of oxygen

removed…. about 21%. As the pressure drops, the

pressure on the outside of the test tube pushes the

water level up inside the test tube.

Source

SUDOKU

The activity for today is Sudoku.

Sudoku originally called Number Place, is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid (also called "boxes", "blocks", "regions", or "sub-squares") contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a unique solution.

[Source: http://en.wikipedia.org/wiki/Sudoku]

Members are given 3 sets of sudoku and the challenge is to complete within an hour.

Maths Quiz

The activity for today is Mathematics Quiz.

1. What is the next number in the series.

15, 29, 56, 108, 208, ?

2. Find the next number in the sequence

5, 12, 24, 36, ?

3. What is the probability of choosing the correct answer at random from the options below.

a. 1/4

b. 1/2

c. 1

d. 1/4

4. Using eight eights and addition only, can you make 1000?

5. Manish and Manoj play 5 game of chess.

Both Manish and Manoj won exactly same number of games. There is no tie at all. How?

6. A frog fell on the bottom of the well.

The well is 30 feet deep.

During day time, the frog jumps 5 feet while at night when the frog sleeps he slip 4 feet back.

In how many days will the frog come out from well.

Maths Quiz

The activity for today is Mathematics quiz.

1. Fred can eat 27 chocolates in an hour, Alice can eat 2 chocolates in 10 minutes and Kelly can eat 7 chocolates in 20 minutes. How long will it take for them to share and eat a large box of 120 chocolates while watching a movie ?

2. From a pack of 52 cards, 4 cards are placed on the table.
You're given 4 clues about the 4 cards:
Clue 1: Card on the left cannot be greater than card on the right.
Clue 2: The difference between first card and third card is 8.
Clue 3: There is no card of ace.
Clue 4: The difference between second card and forth card is 7.
Identify the 4 cards.

3. Solve the maths equation in the picture below by placing the 1 to 9 into the boxes so that all the 3 equations are correct.

4. There are 4 big houses in the town, each houses are made of red marbles, green marbles, white marbles and blue marbles.
Miss Jennifer's house is on the left of the green marbles house and white marbles house is located at third.
Miss Sharon owns a red marbles house and Mr Cruz's house is located neither the end of left nor right., but located at somewhere on the right of the blur marbles house.
Mr Danny lives at the forth house, while the first house is not made of red marbles.
Can you tell who lives in house made of what color of marbles?

Colourful Convection Currents

Our experiment today is Colourful Convection Currents.

Convection is one of those words that we often hear used, but we may not completely understand its meaning. Weather forecasters show how convection currents are formed when warm and cold air masses meet in the atmosphere. Convection currents are responsible for warm water currents that occur in oceans. This activity demonstrates convection currents in a very colorful fashion.

Materials
Four empty identical bottles (mouth of the bottle should be at least 1 1/2 inches in diameter) or use our Split Demo Tank
Access to warm and cold water
Food colouring
3 x 5 inch index card or an old playing card

Procedure

Fill two bottles with warm water from the tap and the other two bottles with cold water. Use food coloring to color the warm water yellow and the cold water blue. Each bottle must be filled to the brim with water.

Hot over cold: Place the index card or old playing card over the mouth of one of the warm water bottles. Hold the card in place as you turn the bottle upside down and rest it on top of one of the cold water bottles. The bottles should be positioned so that they are mouth to mouth with the card separating the two liquids. You may want to do this over a sink.

Carefully slip the card out from in between the two bottles. Make sure that you are holding onto the top bottle when you remove the card. Observe what happens to the colored liquids in the two bottles.

Cold over hot: Repeat steps 2 and 3, but this time place the bottle of cold water on top of the warm water.


The movement of warm and cold water inside the bottles is referred to as the convection current. In our daily life, warm currents can occur in oceans, like the warm Gulf Stream moving up north along the American Eastern Seaboard. Convection currents in the atmosphere are responsible for the formation of thunderstorms as the warm and cold air masses collide.

[Source from: http://www.stevespanglerscience.com/lab/experiments/colorful-convection-currents]

Summary for 2012/2013

A short summary on activites we have done.

Let's have a look

1. Oxidation States of potassium permanganate and Whoosh bottle experiment
2. Fire water balloon
3. Sinking smoke
4. Gummy bears and potassium chloride
5. Fireballs and thunders
6. Can crushing
7. Quiz
8. Chemical garden
There is a few combine meetings with the lower form members as well

I think all the members did enjoy the activities that have been carried out. 
Its time to step down and let the newbies do their job! All the best~

Stay tuned for more fun activities.

~shiuanyih~