Problem Statement:
Are cans and dried mid-rib of a banana tree eco-friendly heat insulator?
Goal
The main objective of this research is to construct an eco-friendly heat insulator is to save the world by using recycled materials instead of new materials to help reduce the risk of global warming. Besides, the science team is also thinking about how to reduce the risk of temperature changes on objects inside the heat insulator.
Basic Theory
Plants hold no heat. The dirt does.
Eco-friendly products are products that do not harm the environment, whether in their production, use or disposal. Some of these going green products when in use, help conserve energy, minimize carbon footprint or the emission of greenhouse gases, and does not lead to substantial toxicity or pollution to the environment.
Other green products are biodegradable, recyclable or compostable. Hence, they do not harm the environment or upset the ecological balance when they are disposed of.
There are also eco-friendly products that are made out of recycled materials. These recycle products help reduce the need for new raw materials and the amount of waste sent to landfills and incinerators (because waste can be diverted to making recycled products).
Hypothesis
The dried mid-rib of banana tree is not a good heat insulator while the used cans are good heat insulators.
Materials and Procedure
Materials
Dried mid-rib of banana tree.
Milkis Can
Pepsi Can
Tape
Water
Apparatus
Scissors
Thermometer
Ruler
Construction Procedure
Prepare all the materials needed.
Cut the dried mid-rib of the banana tree so that it could cover the outer side of the Milkis Can.
Cover the Milkis Can with the sliced mid-rib for the first layer by sticking the sliced mid-rib with the tape to the Milkis Can.
By using the tape, cover the outer layer of the can with the full dried mid-rib as the second layer.
Cut the top of Pepsi Can.
Cut the dried mid-rib into circular-shaped and stick it to the inner bottom side of the Pepsi Can.
Place the wrapped Milkis Can inside the Pepsi Can.
Planning the Experiment
Getting Ready for the Experiment
Prepare the thermometer, the heat insulator, and an unwrapped Milkis Can.
Boil the water inside the water heater until it reaches 75OC.
Separate the boiled water equally inside the heat insulator and the non-heat insulator. Do not heat or cool down the water during the process of data recording.
Analyze and record the temperature for every 10 minutes for 60 minutes in both containers.
Result and Analysis
Temperature vs. Time Table
Time (s) Temperature (OC)
Without Heat Insulator With Heat Insulator
0 75 75
600 65 71
1200 56,5 66
1800 52 63
2400 48 60
3000 45 57
3600 42 54,5
Discussion
On the experiment result above, when the water cools down from the heating process, the water temperature could have been decreased quicker outside the heat insulator.
First, 100 mL of regular deionized water was measured using a 100 mL graduated cylinder. This water was then poured into the styrofoam cup that will be used to gather the hot water later. The water level was then marked using a pen on the inside of the cup. The water was then dumped out, and the cup was dried. Next, 100 mL of regular deionized water was measured using a 100 mL graduated cylinder, and the fish tank thermometer was placed in the water. Once the temperature was stabilizing in the graduated cylinder, the marked styrofoam cup was filled to the mark with hot water. Quickly, the temperature of the regular water was recorded immediately before it was poured into the styrofoam cup. The regular/hot water was mixed for a couple seconds, and the fish tank thermometer was then submerged into the water. After approximately 30 seconds, the temperature of the mixture leveled out, and was recorded. This was repeated three
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