Chromatography Garden By: Jenny Loveridge Featuring Planting a Rainbow

Learning Objective, Content Standards, & Targeted Grade Level Colored inks are actually a mixture of colors Colored inks are actually a mixture of colors Students will learn about mixtures and chromatography through experimentation Students will learn about mixtures and chromatography through experimentation Good for second or third graders Good for second or third graders

Unit Outline Before Lesson: students record color they see in real bouquets and in seed catalogs, and compile a class list Before Lesson: students record color they see in real bouquets and in seed catalogs, and compile a class list Students hear Planting a Rainbow and watch for flower colors Students hear Planting a Rainbow and watch for flower colors Students are presented with imaginary dilemma in which they will solve through chromatography Students are presented with imaginary dilemma in which they will solve through chromatography Conclusion: students use booklets made with flower seed packets to record observations Conclusion: students use booklets made with flower seed packets to record observations

Prior to Lesson Prepare flower center with flower seed catalogs and assortment of flower Prepare flower center with flower seed catalogs and assortment of flower Have students visit center and record flower colors Have students visit center and record flower colors Photocopy flip cards to give students a visual to follow as they go along Photocopy flip cards to give students a visual to follow as they go along

Day One of Lesson Get students ready to read Planting a Rainbow through a class discussion and using their science chart to come up with a class list of colors Get students ready to read Planting a Rainbow through a class discussion and using their science chart to come up with a class list of colors Read Planting a Rainbow Read Planting a Rainbow Ask students what colors they saw in book Ask students what colors they saw in book Present students with imaginary dilemma: Present students with imaginary dilemma: You work for a book company and have been assigned to the job of illustrating a book about flower gardens. Unfortunately, you have only three pens to work with. How can you make beautiful and colorful illustrations with only three pens? Tell students that they will use a process called chromatography to solve the problem. You work for a book company and have been assigned to the job of illustrating a book about flower gardens. Unfortunately, you have only three pens to work with. How can you make beautiful and colorful illustrations with only three pens? Tell students that they will use a process called chromatography to solve the problem.

Day Two Have students take make science journals using flower seed packets and small pieces of paper to record observations Have students take make science journals using flower seed packets and small pieces of paper to record observations Remind students of the problem they need to solve Remind students of the problem they need to solve Let the students know that you will help them solve their problem, tell students that this problem will be solved through chromatography Let the students know that you will help them solve their problem, tell students that this problem will be solved through chromatography Briefly explain chromatography Briefly explain chromatography

Day Two Continued Show students how to perform the experiment Show students how to perform the experiment Have students get into groups in order to do the experiment Have students get into groups in order to do the experiment Have students record observations for conclusion Have students record observations for conclusion

Teacher’s Role To guide students through lesson by giving background information and showing how to solve problem To guide students through lesson by giving background information and showing how to solve problem

Various Teaching Techniques Modeling Modeling Giving students a how-to booklet to refer back to Giving students a how-to booklet to refer back to

Student Evaluation Participation Participation Directions Directions Did they execute experiment correctly? Did they execute experiment correctly? Science journal Science journal

Unit Theme/Integrated Subjects Flowers Flowers Can be tied in with art Can be tied in with art Can be tied in with the life cycle of a flower/plant Can be tied in with the life cycle of a flower/plant

Appropriate Literature Planting a Rainbow by Lois Ehlert Planting a Rainbow by Lois Ehlert Science Book of Color by Neil Ardley Science Book of Color by Neil Ardley

Bloom’s Taxonomy Knowledge demonstrated through observation and recording skills Knowledge demonstrated through observation and recording skills Comprehension demonstrated through understanding that colors such as red and green are actually a mixture of colors Comprehension demonstrated through understanding that colors such as red and green are actually a mixture of colors Analysis through seeing that most colors are not just one color Analysis through seeing that most colors are not just one color Synthesis through relationship of chromatography and art Synthesis through relationship of chromatography and art Evaluation through comparing different colors and the resulting effect Evaluation through comparing different colors and the resulting effect

Science Process Skills Following Procedures Following Procedures Observing Observing Recording Observations Recording Observations Drawing Conclusions Drawing Conclusions

Data Collection and Analysis Students will observe what happens when the water gets to the ink Students will observe what happens when the water gets to the ink Students will be asked to record observations in a booklet Students will be asked to record observations in a booklet

The Nature of Science Things are not always as they seem Things are not always as they seem

Experiment Students will use filter paper, water soluble markers, a plastic cup and a pipe cleaner to use chromatography to separate colors Students will use filter paper, water soluble markers, a plastic cup and a pipe cleaner to use chromatography to separate colors Students will use a wedge of rolled up filter paper inserted in the middle of a circle of filter paper to see that water travels up the paper from a cup Students will use a wedge of rolled up filter paper inserted in the middle of a circle of filter paper to see that water travels up the paper from a cup Students will watch teacher model experiment Students will watch teacher model experiment

Experiment Continued Students will get into groups and receive three markers per group Students will get into groups and receive three markers per group Students will make quarter size ring of dots on filter paper center alternating all three colors Students will make quarter size ring of dots on filter paper center alternating all three colors Students will fill the bottom of the cup with water Students will fill the bottom of the cup with water Students will poke a whole in the center of filter paper, soak pipe cleaner in water and insert in whole Students will poke a whole in the center of filter paper, soak pipe cleaner in water and insert in whole Students will watch as the water soaks up and separates ink Students will watch as the water soaks up and separates ink Students will discuss the solution to their imaginary problem and make observations in their science journals Students will discuss the solution to their imaginary problem and make observations in their science journals

Supplies Needed Per Student clear plastic cup clear plastic cup water water paper circles, 9-15 cm diameter (round filter paper or coffee filters) paper circles, 9-15 cm diameter (round filter paper or coffee filters) piece of fluffy pipe cleaner (4 inches in height, a little less than the cup height) piece of fluffy pipe cleaner (4 inches in height, a little less than the cup height)

Supplies Needed Per Group Three water- soluble, fine- or medium-point felt-tipped pens make sure each group only gets three colors make sure each group only gets three colors

Supplies Needed Per Class sharpened pencil, nail or similar tool to poke a 2mm to 3mm hole in paper sharpened pencil, nail or similar tool to poke a 2mm to 3mm hole in paper scissors scissors