DENSITY EXPERIMENT By Christopher / 6A. Problem/Question Problem: Will object with different density...
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DENSITY EXPERIMENT
By Christopher / 6A
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Problem/Question• Problem: Will object with different density make
something that fall to it fall faster than the ones that have less density?
• Question: Will different kinds of liquid make an object sink faster or slower?
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Observation/Research• Density is the mass compiled inside something
that is compressed when something is getting smaller. For example when you compress a clay from a big one into a small one, it will have more
density in it. The things with more density in it will make something sink slower than the ones
with less density.
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Hypothesis• If the coin is put in the cola bottle, it will sink slower than
in the water bottle.
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Independent VariableDifferent types of water: Oil, water and cola
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Dependent VariableIn this case it would be the time needed for the coin to sink
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Control Variable
The things that I keep the same are the bottles, coin and stopwatch.
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Experiment(Materials and Equipments)
Materials Equipments
OilWaterCola
StopwatchBottlesCoins
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Experiment(1st Procedure)
1. We pour water, oil, and cola to 3 different bottles (transparent bottle)
2. Measure the time needed when you drop the coin to the water.
3. Repeat what you did to the oil and cola
4. Record the data
Materials and equipment: oil, water, cola, stopwatch, bottles, coins
Cola needed 5.89 seconds
Oil needed 1,40 seconds
Water needed 1,05 seconds
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Experiment(2nd Procedure)
1. We pour water, oil, and cola to 3 different bottles (transparent bottle)
2. Measure the time needed when you drop the coin to the water.
3. Repeat what you did to the oil and cola
4. Record the data
Materials and equipment: oil, water, cola, stopwatch, bottles, coins
Cola needed 5.54 seconds
Oil needed 1.97 seconds
Water needed 0.77 seconds
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Experiment(3rd Procedure)
1. We pour water, oil, and cola to 3 different bottles (transparent bottle)
2. Measure the time needed when you drop the coin to the water.
3. Repeat what you did to the oil and cola
4. Record the data
Materials and equipment: oil, water, cola, stopwatch, bottles, coins
Cola needed 5.27 seconds
Oil needed 1.46 seconds
Water needed 1.14 seconds
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Collect and Analyze Results
(Data Table)Amount of…Length of…
(Independent Variable)
TRIALS
AVERAGE(in cm or….)1st 2nd 3rd 4th
Cola 5.89 sec 5.54 sec 5.27 sec 5.56 sec
Oil 1.40 sec 1.97 sec 1.46 sec 1.61 sec
Water 1.05 sec 0.77 sec 1.14 sec 0.98 sec
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Graph
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Collect and Analyze Results
(Graphs)
Modify the procedure if needed.
Confirm the results by retesting.
Include tables, graphs, and photographs.
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Pictures
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ConclusionSo my hypothesis is right because when I put the coin in the oil and cola, it sinks slower than in the water because
cola and oil has more density than water so an object sinks slower in it.
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Bibliographyhttp://www.imcpl.org/kids/blog/?
p=9042
http://encyclopedia.kids.net.au/page/de/Density