Page 90 - Career Readiness Catalog

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CONSERVATION OF MATTER
Kit #142
Students compare the same gas-producing chemical reaction
in both a closed and an open system . They observe that the
mass decreases in an open system but remains the same in a
closed system. This data confirms the Law of Conservation of
Mass and reinforces the molecular nature of all matter, including
gases .
REQUIRES BALANCE(S) WITH 0 .1 g MIN PRECISION
Accommodates five classes, each with 6 groups of four students.
Kit No. 142 $84.90
Add a Group No. 142EL $14.35
Refill Kit No. 142-RC $29.00
LITERACY STEM
REFILLABLE ADD A GROUP

ASPIRIN STUDY
Kit #180

Aspirin (acetylsalicylic acid) is probably the most used and
abused non-prescription drug . Using aspirin tablets brought
from home, students analyze and compare them with the
Brand “X” aspirin included in this kit . They determine the
percentage of aspirin and the “filler” components in a tablet,
check pH, and calculate the per aspirin cost . Students draw
conclusions concerning which aspirins are better, which are
safer, and which do nothing at all . This kit makes science more
interesting because it brings “real world” questions into the
classroom .
Requires balances and boiling water bath .
Accommodates two classes, each with 15 groups of two students.
Kit No. 180 $106.55 LITERACY STEM REFILLABLE

UNDERSTANDING AND COMPARING
ANTACIDS

Kit #181
This kit makes science more interesting and meaningful by
dealing with fundamental chemical principles and applying them
to products found at home .
Most antacids are composed of bases or alkalizing agents. Students
are able to take actual over-the-counter antacids (Rolaids, Mylanta,
etc.) brought from home and perform a neutralizing activity which
determines how much acid can be neutralized by a particular
brand . After conducting the activities, students make comparisons
and draw conclusions about the different brands tested .
Accommodates two classes, each with 8 groups of four students.
Kit No. 181 $144.45 STEM LITERACY
Refill Kit No. 181-RC $68.85 REFILLABLE

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