Hypothesis paper chromatography youtube videos

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Students will be introduced to the concept of pigment chromatography and will /customized-research-papers-quickly.html to perform an inquiry in which they will separate plant pigments using paper chromatography.

Kool-Aid® Chromatography |

Plant Pigment Hypothesis paper chromatography Inquiry Summary — 1 per group doc pdf. Plant Pigment Chromatography Instructions — 1 per group doc pdf. Organize students into working groups of youtube hypothesis paper chromatography youtube videos to 4. Distribute one copy of BLM1: Pigment Chromatography Inquiry Summary to each group.

Pen Chromatography

Have each student group develop a testable question for an inquiry that compares the pigments from two leaf samples using paper chromatography e.

Have each group of students also develop a hypothesis hypothesis paper chromatography youtube videos on their inquiry question.

To avoid mix-ups regarding the identity of the leaves, you may wish to hand out one leaf at a time /how-do-you-write-the-application-letter.html have the groups prepare and label the chromatography strip for one leaf before you hand hypothesis paper chromatography youtube videos the second continue reading. Distribute the materials to each group.

Provide each group a copy of Youtube videos 2: Plant Pigment Chromatography Instructions or project the instructions on a screen using the technology available in your classroom. Depending on the height of the cup, students may need to adjust how hypothesis paper chromatography youtube videos paper strip is taped to the pencil or coffee stir stick.

Youtube videos students to try this out before you start the experiment so they know where to tape the paper strip.

Chromatography: Be a Color Detective

Make sure students are careful not to jostle or move the paper once the experiment is running. Students should repeat steps a to f for the second leaf sample. To save time it is best to prepare all the samples and youtube videos run hypothesis paper chromatography youtube videos at the same time in separate cups.

After the chromatography is complete, have students carefully remove the strips of hypothesis paper chromatography youtube videos paper and lay them hypothesis paper chromatography youtube videos on BLM1: Pigment Chromatography Inquiry Summary to dry.

Kool-Aid® Chromatography

The paper strips should be removed from the alcohol before the solvent reaches chromatography youtube videos top of the strips of chromatography youtube videos paper. The colours will fade as the paper dries, so this is much easier to do as soon as possible, and of course, the solvent front will disappear hypothesis paper chromatography youtube videos quickly as the alcohol evaporates.

Students should immediately mark the position and hypothesis paper the colour of each band e. They should also note the position of the pencil line and how high up the filter paper strip the solvent travelled i.

Have students complete their observations and conclusions on BLM1. The chromatography strips chromatograms should look something like the ones below.

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At the end of the experiment, review the results hypothesis paper chromatography youtube videos conclusions students recorded on BLM1.

The students should see three or four distinct, differently hypothesis paper chromatography youtube videos bands on their chromatograms:. Have students discuss the results in relation to the testable youtube videos and hypotheses they developed at the start of the activity.

Have students complete the extension activity on the bottom of BLM1. As a class, share and compare youtube videos results of the Rf calculations.

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