Page 64 - Career Readiness Catalog

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DENDROCHRONOLOGY
– TREE RING DATING
Kit #52
Your students will learn the important effects of climate on
living things as they unravel secrets about the age and history
of trees . They will also be asked to estimate the climate of
a particular year in the distant past by carefully studying a
tree’s annual rings . Students can also infer similar information
by using various wooden objects .
Accommodates unlimited classes, each with 12 groups of two students.
Kit No. 52 $57.55
Add a Group No. 52EL $9.65
Eng./Spn. Kit No. 52-BL $59.85
SPANISH ADD A GROUP
AG NONCONSUMABLE

METABOLISM EXPERIMENT

Kit #55
This kit introduces students to the study of metabolism by
measuring the rate of oxygen consumption of small organisms,
such as insects, snails, worms and germinating seeds . Using Lab-
®
Aids Metabolism Chambers, students observe the organisms (not
included) and draw correlations between size of an organism, the
temperature of the environment, and oxygen consumption . They
are also asked to calculate an organism’s respiratory rate in cubic
cm of oxygen per kg per hour, measure total gas change in a closed
environment, and determine an organism’s metabolic relationship to
total gas in a closed environment .
Accommodates one class with 2 groups of students.
Kit No. 55 $96.95
Eng./Spn. Kit No. 55-BL $99.95 STEM SPANISH
Refill Kit No. 55-RC $12.90
AG REFILLABLE

MOLECULAR MODEL OF DNA
AND ITS REPLICATION
Kit #71
In the Modeling Molecules of Life kit this basic introduction to the
double helix model of DNA uses simple components developed
exclusively by Lab-Aids . Those unique components include:
®
• double nitrogen pyrimidine bases that are constructed proportionately
larger in diameter than the single nitrogen purine bases .
• bases that are linked by a unique hydrogen bond .
• the deoxyribose sugar is pentagon-shaped deoxyribose sugar,
representing its actual molecular structure .
Accommodates unlimited classes, each with 12 groups of two students.
Kit No. 505 $143.55
Eng./Spn. Kit No. 505-BL $145.70 SPANISH LITERACY
Add a Group No. 505EL $13.20 ADD A GROUP NONCONSUMABLE

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