250 1-800-452-1261
Becker Bottles “One in a Million”
By: Bob Becker, Kirkwood H.S., Kirkwood, MO
These amazing bottles make molecular concentration
and ppm contamination concepts more
concrete for your students and offer many
wonderful teaching opportunities.
Concepts: Solution concentration, parts per
million.
See free video at flinnsci.com.
Catalog No. Description Price/Each
AP4559 Becker Bottle “One in a Million” $55.20
AP4854 Becker Bottle “One in a Million Too” 54.66
AP4863 Becker Bottles, Set of Two 106.53
Air in a Bottle
By: Scott Newkirk, Front Range Community College,
Fort Collins, CO
The 3-liter model contains one million different colored
spheres. Each color represents a different gas found in
the Earth’s atmosphere. A great educational value that can
be easily incorporated into your lessons for many years to
come!
Catalog No. Description Price/Each
AP7558 Air in a Bottle—Demonstration Model $61.92
Flinn’s Exploring Chemistry™
Solids, Liquids and Solutions Package
See page 254.
Keep Your Eye on the Ions—
Double Replacement Model
By: Patti Duncan, High Point Regional High School, Sussex, NJ
When the molecules are placed in water,
the bonds break and “ionization” occurs.
Some of the ions bond (magnetic attractions)
and form insoluble molecules
that precipitate (sink) to the bottom of
the beaker. Other “soluble” ions (nonmagnetic)
continue to float around in
solution.
Concepts: Double replacement reaction, solubility.
Catalog No. Description Price/Each
AP6377 Keep Your Eye on the Ions—
Double Replacement Model Demonstration Kit
$19.30
pH and Protein Solubility—
A Reversible
By: The Flinn Staff
When acids and bases are added to a protein
solution, the solubility of the protein changes
drastically. This demonstration looks at the acid–
base and solubility properties of casein, the main
protein in milk.
Concepts: Proteins, isoelectric point, solubility, pH.
Catalog No. Description Price/Each
AP6692 pH and Protein Solubility—Reversible Demonstration Kit $25.26
Solutions, Colloids and Suspensions
By: The Flinn Staff
Through a series of four demonstrations,
students will see and learn how to easily
identify a mixture as one of these three types.
Concepts: Solution, colloid, semipermeable
membrane, Tyndall effect.
Note: Perform this demonstration in a fume hood or well-ventilated lab.
Catalog No. Description Price/Each
AP6635 Solutions, Colloids and Suspensions—
Chemical Demonstration Kit
$43.81
CHEMICAL DEMONSTRATION KITS—SOLUTIONS/SOLUBILITY continued on next page.
Chemical Demonstration Kits—
Solutions/Solubility, continued
Sorting Out Solutions
By: The Flinn Staff
Two clear solutions are combined to form a homogeneous mixture.
As a solid chemical is added, the two seemingly inseparable solutions
begin to “sort” into two layers. As more solid is added, the
two layers become more distinct.
Concepts: Solubility, bonding, polar and nonpolar solvents.
Catalog No. Description Price/Each
AP8902 Sorting Out Solutions—Chemical Demonstration Kit $51.92
Light Up Your
Demonstrations!
The Flinn Light Box is constructed of 3/4" plywood. Its rugged construction allows for
both vertical and hori zontal viewing. The cool 20-watt fluorescent light bulb and sturdy
acrylic viewing screen yield maximum diffusion with minimum glare. 27" W x 6" H x 8" D.
Convenient cord power switch (115 Volt AC) and installed fluorescent bulb.
Catalog No. Description Price/Each
AP8626 Light Box, Flinn $141.24
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