The Amazing Drinking Bird

December 1, 2009

Tami O'Connor, Educational Innovationsby Tami O’Connor

Invented in 1945 by Miles Sullivan, the “drinking bird” has been a favorite of science teachers in every classroom from kindergarten through college. This amazing device is made of two glass bulbs (one representing the head and the other representing the body) joined by a glass tube (representing the neck).  Between the two bulbs, attached to the glass tube, is a metal fulcrum upon which the bird pivots.  The air has been removed from this closed device, and the bottom ball is filled with a colored liquid that has a high vapor pressure (methylene chloride). The rest of the bird’s body and head is filled with the vapor form of methylene chloride.

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1 Comment | Chemistry, College level, Elementary level, energy, experiments, High School level, Middle School level, Physics | Tagged: , , , , , , | Permalink
Posted by Tami O'Connor

Has The Swine Flu Affected Your School? | Glo Germ Lotion

November 16, 2009

Tami O'Connor, Educational Innovationsby: Tami O’Connor

Is swine flu spreading like wildfire in your community? In my hometown of Redding, Connecticut, the high school’s homecoming dance and the Halloween parties at the elementary school were both canceled. The middle school social was also postponed until flu season is officially behind us.

What better time than now to teach your students about the benefits of proper hand washing techniques and how diseases are actually transmitted from one person to another? Educational Innovations carries a full line of products designed to help you educate your students about germ transmission and how best to reduce the spread of harmful microbes. Let Educational Innovations help you to keep your students more mindful of easy things they can do to stay healthy.

Glo GermGlo Germ is a fantastic product which safely and graphically demonstrates to students and adults alike how germs are spread.

Used throughout the United States in schools, hospitals and food services, Glo Germ consists of an odorless lotion or powder which glows brightly when exposed to ultraviolet light. This product is perfect for your health curriculum. Read the rest of this entry »

Leave a Comment » | Biology, Elementary level, Middle School level | Tagged: , , , , , | Permalink
Posted by Tami O'Connor

Chemistry of Ultraviolet Detecting Beads with Video

November 13, 2009

Ron Perkins, Educational Innovationsby: Ron Perkins

Ultraviolet detecting beads contain pigments that change color when exposed to ultraviolet light from the sun or certain other UV sources. The electromagnetic radiation needed to affect change is between 360 and 300 nm in wavelength. This includes the high-energy part of UV Type A (400-320 nm) and the low energy part of UV Type B (320-280 nm). Long wave fluorescent type black lights work well; incandescent black lights and UV-C lamps will not change the color of the beads.

The dye molecules consist of two large, planar, conjugated systems that are orthogonal to one another. No resonance occurs between two orthogonal parts of a molecule. Imagine two planes at right angles to one another, connected by a carbon atom. When high energy UV light excites the central carbon atom, the two smaller planar conjugated parts form one large conjugated planar molecule. Read the rest of this entry »

5 Comments | Chemistry, energy, High School level | Tagged: , | Permalink
Posted by Tami O'Connor

Ammonite, The Fibonacci Fossil!

November 12, 2009

Sarah Brandtby: Sara Brandt

Ammonite was once thought to be the petrified remains of snakes! Modern science, however, tells us that these fascinating fossils are actually the remains of an ancient aquatic mollusk.  A mollusk is an invertebrate with a soft, unsegmented body.  The soft body of an ammonite was protected by a hard outer shell. The shells of ammonites ranged from an inch to nine feet! Each shell is divided into many different chambers. The walls of each chamber are called septa. The septa were penetrated by the ammonite’s siphuncle, a tube-like structure that allowed the ammonite to control the air pressure inside its shell. Ammonites were aquatic creatures, and being able to control the air pressure inside their shells meant being able to control their buoyancy.

What is the Fibonacci sequence?

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2 Comments | Biology, College level, Earth Science, Elementary level, experiments, High School level, Middle School level | Tagged: , , , , | Permalink
Posted by Tami O'Connor

Goldenrod Paper

October 1, 2009

Ron Perkins, Educational Innovationsby: Ron Perkins

Color changing goldenrod paper has been exciting students of all ages for decades to the wonders of chemistry! Imagine the enthusiasm of the first student or teacher who spilled a few drops of ammonia on a piece of yellow paper and observed it turn bright red! One can only image them exclaiming: “Super, Wow, Neat!!!”

Place the paper in a solution of household baking soda and the paper turns red; immerse it in vinegar and the red turns back to yellow! This goldenrod paper is colored with a dye that is an acid/base indicator: red in base and yellow in acid. The paper is similar to litmus paper that is blue in base and red in acid. Read the rest of this entry »

5 Comments | Chemistry, College level, Elementary level, experiments, High School level, Middle School level | Tagged: , , , , , | Permalink
Posted by Tami O'Connor

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