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~

Annual General Meeting 2013/2014

A normal, simple but quite unorganised AGM. Perhaps the next executive committee member will improve it~

Meeting conducted by vice president which is Wei Hon. And there is some advice from teacher advisor, Pn. Chan. 

Election for next executive committee is done as well.

The new executive committee member

President: Chan Yee Zhe

Vice President: Ma Xin Wei

Secretary: Chong Siew Ying

Assistant Secretary: Manda Wong

Treasurer: Lai Pin Siew

Assistant Treasurer: Tan Poh Shyn

Representatives:- 

Kensett: Chong Pooi Seong

Clancy: Phavika

Mori: Shojin

All the best to the new exco~ Hope you guys can handle it well ;)

Apologies for all wrong doings or anything that make anyone unhappy.

My last post, Shiuan Yih

1st August 2013