In this lab, students will demonstrate observation skills as they design an experiment to separate colors of various water-based pens in order to learn about mixtures and solutions. Students will determine a variable to test and complete...

An introduction and schematic of a gas chromatograph, with a link to pictures.

Explains what paper chromatography is, how it is done, and how the Rf or Retention Factor is calculated.

This lesson focuses on analyzing and identifying substances. Substances can be analyzed using a variety of methods including paper chromatography, gas chromatography and mass spectrometry. After reading about the different techniques,...

An interactive tutorial to determine the amount of dyes present in a powdered beverage in order to examine the allegation that the manufacturer is exceeding the allowable amount of the artificial food dyes in the drinks it produces.he...

Everyone loves the beautiful colors of fall, but where they come from and how they change color is a mystery. In this project, you will uncover the hidden colors of fall by separating plant pigments with paper chromatography.

Are all reds the same? Find out in this science fair project. Investigate if the pigments in one type of red flower are different from those in another type of red flower. Flowers contain an assortment of amazing chemicals that produce...

In this lesson students use simple paper chromatography to investigate a mystery liquid. Student sheets are provided in English and in Spanish.

[Free Registration/Login may be required to access all resource tools.] Students will describe methods for separating mixtures, such as chromatography, distillation, fractional distillation, evaporation, and filtration. They will also...

Students perform DNA forensics using food coloring to enhance their understanding of DNA fingerprinting, restriction enzymes, genotyping and DNA gel electrophoresis. They place small drops of different food coloring ("water-based paint")...

A collection of video lectures about the lab technique of thin-layer chromatography. The videos give a step-by-step demonstration of the analytical technique from the beginning to the end. The demonstrations is broken down into five...

This photo shows a completed chromatography chemistry experiment. The colors have clearly separated from each other along the piece of paper. The original black ink was separated using an ethanol and water mixture solvent.

After a short demonstration on chromatography, students brainstorm ways to change the experiment, and develop a new, testable question related to chromatography.

This lesson plan can be used to illustrate the principle of electrophoresis without the equipment. Paper chromatography can be used to separate dye just like electrophoresis will separate DNA. The lab also covers DNA analysis for an...

For this hands-on, inquiry based lesson students will see the role of pigments in the in the process of photosynthesis. Students will use the process of chromatography to separate plant pigments. Students will then see the function of...

In this lesson plan, students will make a chromatogram of different types of ink. Paper chromatography will be used to detect the different dyes used in the ink. This lesson plan can be used for both Physical Science and Chemistry classes.

Observe the separation of colors derived from black marker ink by wicking water through a marker line on a paper towel.

A step-by-step procedure with pictures for the process of chromatography. Chromatography allows students to see the pigments or coloring of the tissues of plants.

Hunkin's Experiments is a group of simple cartoon illustrations of scientific principles. Some would work well in the classroom, but others have little value beyond entertaining students. All of the projects are easy to do. This one is a...

In the first part of this lab, you will measure the absorption spectra of two conjugated dyes and compare the results to the theoretical predictions of a particle-in-a-box model. In the second part of the experiment, you will identify...

Students are introduced to the fundamentals of environmental engineering as well as the global air, land and water quality concerns facing today's environmental engineers. After a lesson and activity to introduce environmental...

There are different ways to separate mixtures, for example by filtration, crystallization, distillation, or chromatography. The method chosen depends upon the type of mixture.

Do you ever wonder how markers are made? Where do all of those colors come from? Many of the colorful dyes we use come from plant pigments. Pigments are what make the world around us so colorful. How do chemists turn those natural plant...

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