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

Science Project

chromatography
by

Yilei Dong

on 12 January 2014

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Science Project

5. Procedure
1) Use pens/markers to dot a circle around the coffee filter.
2) Poke a hole in the center of the coffee filter.
3) Fill a glass with heated water.
4) Put the coffee filter & pipe cleaner structure on top of the cup & wait 5 minutes.
1. Abstract
In this science project, I will separate the mixtures of the inks in markers and pens. The variables I will be manipulating are the temperature of the water, and the colors of the markers used. First, I will dot a piece of paper with different markers. Next, I connect the center of the coffee filter with a pipe cleaner. Then, I put the pipe cleaner and coffee filter over the top of a heated glass of water. From here, I wait for a few minutes until the inks of the markers separate.
Question
What is the ink inside my pens & markers composed of?
What color Marker runs the most?
by Yilei Dong
Period 3
Hypothesis
If I use pens & markers to dot a paper & use a pipe cleaner to connect a heated cup of water, then I will instantly see what separate colors each individual ink is made of.
3. Background Information

Table of Contents

Abstract: 1
Question/Hypothesis: 2
Background Information: 3
a. Concepts
b. Vocabulary Words
c. History of Scientists
Materials: 4
Experimental Procedure: 5
a. Written Description
b. Photos
Data Collected: 6
a. Photos
Conclusions & Findings: 7
Glossary: no needed
References: 8
4. Materials
1 coffee filter
1 glass cup
3 pens or markers
1 pipe cleaner
water
Setup
6. Data Collected
Conclusions
8. References
2.
Once the blue separated, I could see a tinge of purple. Once the green separated, a tinge of yellow was visible. When the pink separate, there was only pink. When the brown separated, tinges of pink, purple, orange, and yellow were visible. When the orange separated, a tinge of yellow was visible.
Chromatography was first discovered by Russian botanist, Mikhail Tswett in 1906. He used a simple version of the method today to extract plant pigments, which produced color bands. However, his idea was lrgely ignored for a long time and not until the late 1930's& early 1940's Martin & Synge introduced liquid-liquid chromatography
After experimenting with several different colors, I got to see what each color was composed of. A tinge of purple was in the blue and a little yellow was visible in the green. However, the pink didn't separate. Since these are all basic colors, it's quite likely that they're are only made of 1 dye. When I repeated the experiment with the brown and orange, I noticed that the orange had some yellow in it, and the brown had orange, yellow, purple, pink, perhaps some green in it, but it's hard to tell. Since these aren't basic colors, it's certain that they are composed of several different dyes. So far from this experiment, I conclude that brown is composed of the most colors.

Chromatography (chro-ma-tog-ra-phy)
Origin: Chroma (greek), meaning color
Definition 1: Any og various techniques for the separation of complex mixtures that rely on the differential affinites of substances for a gas/liquid mobile medium & for a stationary absorbing medium through which they pass, such as paper, gelatin, or magnesia
Source for Definition 1: www.thefreedictionary.com/chromatography
Definition 2: The process of separating parts of a mixture by letting it travel through a material that absorbs each part at a different page
Source for Definiton 2: Children's Dictionary, pg. 96

concepts:
Vocabulary Words:
Time for kids: Big book of Scienece experiments. 10: 1-60320-893-3, 13: 978-1-60320-893-2. "From Perfume to Pens", "Combining colors." 2011. pg. 104, 107.
Physical sCIENCE. "pROPERTIES OF MIXTURES." 0-03-042659-6. HOLT, RINEHART, & WINSTON. 2007. PG. 142
Encycopedia Americana. "Paper chromatography." Encyclopedia americana corp. 0-7172-0127. 1996. Volume 6. pg. 674.
"Paper chromatography (Background)." <www.chemguide.co.uk/analysis/chromatography/paper.html>
"chromatography." Howstuffworks. <www.howstuffworks.com/chromatography-info.htm>
"Color Chromatography." exploratorium. <www.exploratorium.edu/afterschool/activites/index.php?activity=172>
"Principles of paper chromatography." Pepperdine. <falculty.pepperdine.edu/jfritsch/Fritsch/12020web/paper%chromatography%20s13%20upload.pdf>
"Newton & the Color Spectrum." Color vision & art. <http://www.webexhibits.org/colorart/bh.html>
"Sir Isaac Newton Biography for kids-founder of calculus." Mr. Nussbaum: Learning+fun. <http://mrnussbaum.com/pioneers/isaac_newton>
Mixture (miks-chur)
Origin: mix (English) meaning combine or put together to form 1 substance or mass
Definition 1: A substance made by mixg other substances together
Source for Definition 1: Google.com
Definition 2: Combiniation of 2 or more substances that are not chemically combined
Source for Definition 2: Physical Science, pg. 142.


History of scientists:
The main reason why we have colors is because we have light.
To understand the composition on colors, we must look at what light is composed of. In the late 1660's Isaac Newton set up a prism near his window, which produced a 22 ft spectrum on the wall. To prove the prism was not coloring the light, Newton refracted the light back together. Artists were so intriugued by Newtons' idea that light is the reason for color. His most useful idea for artists
was the way how the colors were arranged.
Chromatography
The Discovery of the Spectrum
Mikhail Tswett
Mikhail Twsett was a Russian-Italian botanist who invented absorption chromatograohy. He was born in May 14, 1872 in Asti, Italy. He dedicated himself to botany, after recieving his B.S. degree from the Dept. of Physics and Mathematics from the University of Geneva in 1896. Tswett invented chromatography in 1903 while doing his reasearch on plant pigments. He died in June 26, 1919.
Isaac Newton
Isaac Newton was an English physicist & mathematician who was born on Dec. 25, 1642. In 1670, he studied optics, & developed theories relating to the composition of white light. His experiment with the prism proved that white light is made up of the 7 colors of the rainbow. However, he faced a lot of controversy with his findings. Throughout his life, Newton developed many laws and theories, still used today. Newton died on March 20, 1727. Even to today, he is still one of the most influential scientists in history.
Repeated this with brown & orange...
did this a couple of times to get
an accurate result...
with the blue, green, & pink markers only...
*no need for glossary
Full transcript