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

Elephants Toothpaste

No description
by

Elaine Sarracino

on 26 April 2013

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Elephants Toothpaste

By: Shilyn, Elaine, Xavier Elephants Toothpaste Research Experiment Procedures Hypothesis WORKS CITED Data Analysis http://www.stevespanglerscience.com/experiment/hydrogen-peroxide-eruption
http://chemistry.about.com/od/chemistrydemonstrations/a/elephanttooth.htm
http://www.sciencebob.com/experiments/toothpaste.php
http://www.wikihow.com/Make-Elephant-Toothpaste THE PROBLEM STATEMENT We are trying to figure out how quickly different concentrations of hydrogen peroxide react with sodium iodide. Vocabulary Decomposition reactions : (chemistry) separation of a substance into two or more substances that may differ from each other and from the original substance. # 1 #2 Hydrogen peroxide:(Chemistry / Elements & Compounds) a colorless oily unstable liquid, usually used in aqueous solution. It is a strong oxidizing agent used as a bleach for textiles, wood pulp, hair, etc., and as an oxidizer in rocket fuels. Formula: H2O2 #3 Sodium iodide: a binary haloid, used as a source of iodine. it is used in thyroid function tests and thyroid imaging and to treat hyperthyroidism and thyroid carcinoma. #4 Catalyst: A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change. #5 Exothermic Reaction: a chemical reaction that gives off heat We think if we mix 30% H2O2 with sodium iodide it will have the longest reaction, the 15% H2O2 will have a shorter reaction, and the 3% will have the shortest reaction 1. The first step to this experiment is to put on your safety glasses!
2. Pour 20 ML of the 30% Hydrogen Peroxide into the graduated cylinder. Place the cylinder in a large tray to make the clean up easy.
3. Add a squirt (about 5ml) of dish soap to the graduated cylinder that has the 30% hydrogen peroxide in it.
4. Add (3 to 10) drops of food coloring to brighten things up.
5. Prepare your timer so that you can see how fast the eruption took place.
6. Carefully add 5ml of the 2M sodium iodide solution. The reaction happens fast, so you have to make sure you stand back. 1. The first step to this experiment is to put on your safety glasses!
2. Pour 20 ML of the 15% Hydrogen Peroxide into the graduated cylinder. Place the cylinder in a large tray to make the clean up easy.
3. Add a squirt (about 5ml) of dish soap to the graduated cylinder that has the 15% hydrogen peroxide in it.
4. Add (3 to 10) drops of food coloring to brighten things up.
5. Prepare your timer so that you can see how fast the eruption took place.
6. Carefully add 5ml of the 2M sodium iodide solution. The reaction happens fast, so you have to make sure you stand back. 1. The first step to this experiment is to put on your safety glasses!
2. Pour 20 ML of the 3% Hydrogen Peroxide into the graduated cylinder. Place the cylinder in a large tray to make the clean up easy.
3. Add a squirt (about 5ml) of dish soap to the graduated cylinder that has the 3% hydrogen peroxide in it.
4. Add (3 to 10) drops of food coloring to brighten things up.
5. Prepare your timer so that you can see how fast the eruption took place.
6. Carefully add 5ml of the 2M sodium iodide solution. The reaction happens fast, so you have to make sure you stand back. THANK YOU! -Thank you Ms. Sallah for helping us

-Thank you Toby King the science guy!

-Miss Peppersack also for helping!

- Staff and students for attending!

Thank you for watching our presentation!! Hope you liked it!! 2nd Experiment 1st Experiment 3rd Experiment Conclusion Based on our evidence we have come to the conclusion that different amounts of hydrogen peroxide affect how fast the eruption is. We proved our hypothesis correct! - 30% hydrogen peroxide it had the fastest reaction. Reaction time: 2.7 seconds.

-15% hydrogen peroxide had a slower reaction than the 30% hydrogen peroxide.
Reaction time: 4 seconds.

-3% hydrogen peroxide had the slowest reaction.
Reaction time: 83 seconds. Data #1 Data #2 - Decomposition reactions:Also called desynthesis, decombination, or deconstruction.

-Hydrogen peroxide: The simplest peroxide (a compound with an oxygen. It is also a strong oxidizer. Hydrogen peroxide is a clear liquid, slightly more viscous than water. In dilute solution, it appears colorless. Due to its oxidizing properties, hydrogen peroxide is often used as a bleach or cleaning agent.

-Sodium iodide:Sodium iodide is a salt and a powder that can formed into a liquid. Sodium iodide is used to treat or prevent iodine deficiency caused by poor nutrition or poor absorption by the body.

-Catalyst: The catalyst in our experiment will be the sodium iodide.

-Exothermic Reaction: is when two chemicals mix together and give off heat.
Full transcript