Page 60 - Career Readiness Catalog

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OSMOSIS AND DIFFUSION

Kit #22
Can studying the basic life processes of osmosis and diffusion
stimulate your students’ curiosity? It can with this
hands-on lab experience. Students observe first-hand the
characteristics of a differentially permeable membrane .
Some substances will pass through the membrane and some
won’t . Some will actually pass through the membrane in
both directions simultaneously . Simple color changes help
students visualize this biological-physiological phenomenon.
Accommodates one class with 12 groups of two students.
Kit No. 22 $111.15 SPANISH
Add a Group No. 22EL $19.50
Eng./Spn. Kit No. 22-BL $112.90 AG STEM LITERACY
REFILLABLE ADD A GROUP

DIALYSIS EXPERIMENT

Kit #23
Chemical and biological theories come to life in this natural
continuation to the study of osmosis and diffusion (Kit #22) .

In this activity, students use a colloidal solution of starch and
sodium chloride to vividly observe dialysis . They also observe
diffusion of a solute through a semi permeable membrane .
Students then remove an inorganic salt from a colloid and test
for the presence of chloride ions and starch with simple color
tests .
Accommodates one class with 12 groups of two students.
Kit No. 23 $111.15
Refill Kit No. 23-RC $69.90

LITERACY REFILLABLE

ENZYMES AS CATALYSTS FOR
STARCH DIGESTION
Kit #25R
The basic concept behind this engaging kit is that all living
organisms must alter nutrients in order to make them usable .
Colorful controlled experiments let students observe factors
affecting enzyme activity while studying catalysis in an
organic reaction . Tests are performed in drop quantities using
®
®
the Lab-Aids Chemplate .
Accommodates one class with 12 groups of two students.
Kit No. 25R $143.15
Add a Group No. 25REL $24.15
Refill Kit No. 25R-RC $96.85
AG STEM REFILLABLE
LITERACY ADD A GROUP

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