Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Dry Ice Bubbling Acid Experiment.

No description
by

on 29 March 2014

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Dry Ice Bubbling Acid Experiment.

Data and Results
Background Information.
There are four types of polymers, which are protein, carbohydrate, nucleic acid and lipids.

Carbohydrates
are made up of oxygen, hydrogen and carbon. The function of carbohydrate is to provide energy for huamn's body, such as starches and veggies.
Background Information.
Chemical reaction
is when
reactants
form together and make a new
substance
.
The law of conservation of matter
states that during a physical change or a chemical reaction, the mass of the products must be
equal

to the mass of the reactants, matter cannot be destroyed or created in an isolated system. That’s the reason why we need to learn how to
balance
an equation.
Background Information
Double-replacement: a chemical change involving an exchange of positive ions between two compound.

experimental question and hypothesis
Dry Ice Bubbling Acid Experiment.
Lipids
are what we called the fats, which store energy for our body, protect plants' leaves and keep animals warm. Olive oil, butter are all examples of lipids.

DNA and RNA are
nucleic acids
that contain in our cells, which determine our characteristics as who we are.
Proteins
are an important class of biomolecules, Protein makes our hair, skin, muscles and nails etc. Food like chicken, egg, cheese and milk have great value of protein.
Polymer
From the trends, I observed that dry ice dissolved the fastest in hot water, which produced the biggest amount of carbon dioxide. And dry ice could not dissolve completely in cold water in 15 minutes, which means cold water could hold more gases.
Analysis
Analysis
Combination reaction: a chemical change in which two or more substances react to form a single new substance.
Decomposition reaction: a chemical change in which a single compound breaks down into two or more simpler products.
Single-replacement reaction: when chemical change in which one element replaces a second element in a compound.
Combustion reaction: a chemical change in which an element or a compound reacts with oxygen, often producing energy in the form of heat and light.
Three types of bonds:
Ionic bonds
covalent bonds
metallic bonds

polarity
refers to how electrons are distributed inside a compound. polar solutes dissolve in polar solvents. Non-polar solutes dissolve in non-polar solvents. intermolecular forces depend on polarity
intermolecular forces
are attractions between molecules or compound.
Experimental question and hypothesis
Thank you!!!
procedure
Three breakers
Blue indicator
First, Pour 200 ml of water in different temperature into different breakers
HOT
Warm
cold
After,Pour it into the breaker
We can see here the cold water turns into green mixed with blue indicator
last, we put the same amount of dry ice into the breakers.
Dry Ice
Next, pour 3ml of blue indicator into the cylinder.
The dry ices are dissolving and producing large amount of Carbon Dioxide.
As time goes, the carbon dioxide production is decreasing.
After 15 mines, some dry ices are completely dissolved in the water.
Time for the dry ice to dissolve in the water
Data table.
The controls of our experiment were the breakers, dry ice and the blue indicator. The independent variable was using different temperature of water, and the dependent variable was the time it takes to dissolve the dry ice. It was important to keep all other variables in the experiment the same so that they wouldn't affect our results.
I am somewhat certain that my results are correct because although we did the experiments step by step by following the procedures, however, we only had time to do one trial out of three.
Two sources of uncertainty:
1, Although we claimed that we put the same amount of dry ice into the water, but the dry ice wouldn't be totally the same pieces. Therefore, it might affect the results.
2, When we were doing the experiment, a graduated cylinder with amount of blue indicator accidentally dropped into one of the breaker, it might affect the result by having more blue indicator in one breaker.
If I could do further test on polymers and polarity reactions, I would like to do the oil absorbing polymers experiment.
Thank you for listening !!!!

Facilitator: Lulu
Recorder: Angel
Observer: Bania
resource manager & timer: Paulina.
Is water temperature a factor to cause the dry ice dissolve faster?
I infer that dry ice won't dissolve faster in cold water because dry ice is a solid form of carbon dioxide, and cold water tends to hold more gases.
The Graph.
From the results, I infer that it's hard for CO2 to dissolve because CO2 is non-polar and water is polar. Non-polar suppose to dissolve in non-polar. However, there was about 16% reacts with the water molecules.
More information please visit:
http://www.stevespanglerscience.com/lab/experiments/dry-ice-smoking-bubbles
Citation:
Research from the internet

Url:http://www.stevespanglerscience.com/lab/experiments/oil-sp…

Title:Steve Spangler Science

Website title:Oil Spill Absorbing Polymer

Accessed on:2014-03-27



Url:http://www.stevespanglerscience.com/lab/experiments/oil-sp…

Title:Steve Spangler Science

Website title:Oil Spill Absorbing Polymer

Accessed on:2014-03-27



Url:http://www.stevespanglerscience.com/search/experiment?q=dr…

Title:Steve Spangler Science

Website title:Steve Spangler Science

Accessed on:2014-03-27

Full transcript