sizzling alive

SIZZLING ALIVE

GLOBAL WARMING

AZRINA AB RAHIM (M20122001545) HAMIZAH MD ARIS (M20122001552)

NURUL IZZATI YAHYA (M20131000615) NIK NURFATIN MD YAACOP

(M20122001558) NORFAIZA MOHAMED SAID

(M20122001559)

GROUP 4: MEMBERS

Global Warming is the increase of Earth's average surface temperature due to emission of greenhouse gases, such as carbon dioxide.

One of the causes to the global warming is combustion that release carbon dioxide and heat to the atmosphere.

Example of common combustion happen are deforestation (burning of wood) and fuel combustion in vehicle.

SCIENTIFIC CONCEPT

ENGAGE

Picture A: Year 2000 Picture B: Year 2012

Picture A and B showed condition of Poyang Lake, the largest freshwater lake in China after

12 years. What happen to the lake? Explain why this happen.

EMPOWERINGProcedure :

Discovery IT Data Logger

1. Design an experiment to investigate the effect of combustion to global warming.

2. Set up two beakers, one for treatment (place a candle inside) and another one as control.

3. Insert temperature sensor into both beakers.

4. Light a candle in the treatment beaker.

5. Record and compare the temperature in both beakers produce by the combustion for 90 seconds.

6. Repeat the step 3-5 for carbon dioxide sensor.

EMPOWERINGFigure:

Set up for Carbon Dioxide SensorSet up for Temperature Sensor

Candle

EMPOWERINGResult Test 1: Effect Of Combustion Toward Temperature (ºC)

Treatment

Control

Graph Table

EMPOWERING Result Test 2: Effect Of Combustion Toward Carbon Dioxide (CO2)

Treatment

Control

Graph Table

EMPOWERING Discussion:

1. From the graph, which beaker has higher temperature and carbon dioxide content?

2. Why is there a different between temperature and carbon dioxide recorded in both beakers during?

3. Which beakers mostly represent the earth atmosphere when global warming happens?

ENHANCE

Hybrid car is another environment-friendly way to reduce used of fuel in vehicles. Picture above shows an example of hybrid car used electric source to power it up. How the uses of these hybrid cars are helping to reduce global warming?

ENHANCE

Answer:

Hybrid car used electric motor powered by batteries. This combination help

engine to operate more efficient by reduce fuel use. As a result it lets you

reduce carbon emissions which help control global warming. This is

because large proportion of worldwide carbon emission comes from cars

and other vehicles burning fuel. Hybrid cars are more fuel-efficient and,

thus, are able to burn a much smaller amount of fuel to go the same

distance.

Students can measure both temperature and carbon dioxide reading simultaneously.

Temperature sensors are very sensitive toward small changes compare to regular thermometer.

Accurate readings up to 3 decimal places even though the temperature changes very fast.

The graphs can be plotted easily and save time.

The software interface is user friendly and easy to handle by students.

UNIQUE FEATURES