DENSITY EXPERIMENT

By Christopher / 6A

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?

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.

Hypothesis• If the coin is put in the cola bottle, it will sink slower than

in the water bottle.

Independent VariableDifferent types of water: Oil, water and cola

Dependent VariableIn this case it would be the time needed for the coin to sink

Control Variable

The things that I keep the same are the bottles, coin and stopwatch.

Experiment(Materials and Equipments)

Materials Equipments

OilWaterCola

StopwatchBottlesCoins

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

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

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

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

Graph

Collect and Analyze Results

(Graphs)

Modify the procedure if needed.

Confirm the results by retesting.

Include tables, graphs, and photographs.

Pictures

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.

Bibliographyhttp://www.imcpl.org/kids/blog/?

p=9042

http://encyclopedia.kids.net.au/page/de/Density