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OBJECTIVES:
Students learn about chromatography, a process used
to separate mixtures.
Chromatography is
used to detect, separate or purify different substances.
The process is used in many fields such as medicine, crime fighting and
pollution detection.
Students create a chromotogram by separating ink colors on
a T-shirt which they can take with them and wear.
NATIONAL SCIENCE STANDARDS:
Physical Science:
Properties Of Objects And Materials (K-4)
Properties And Changes Of Properties In Matter (5-8)
Structure And Properties Of Matter(9-12)
Science As Inquiry:
Abilities Necessary To Do Scientific Inquiry
Understanding About Scientific Inquiry
Science and Technology:
Understanding About Science and Technology
STANDARDS FOR TECHNOLOGY LITERACY:
The Nature of Technology:
Students will develop an understanding of the characteristics
and scope of technology.
Students will develop an understanding of the core concepts of
technology.
Students will develop an understanding of the relationships
among technologies and the connections
between technology and other fields of study.
Design:
Students will develop an understanding of the
attributes of design.
Abilities of a Technological World:
Students will devop abilities to apply the design process.
The Designed World:
Students will develop an understanding of and be able to select and
use medical technologies.
Students will develop an understanding of and be able to select and
use agricultural and related biotechnologies.
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LECTURE AND PREPARATION TIME:
15 minutes
LESSON TIME:
30 minutes
WORDS TO KNOW:
- chromatogram
- chromatography
- elution
- medium
- mixture
- mobile phase
- porous
- solvent
- stationary phase
- test substance
SPECIAL NOTES:
Although the science concepts and vocabulary are
intended for middle school students,
younger and older students may enjoy this activity.
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