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Safety Demonstrations

Need to impress upon your students for the need of safety? Review the free safety demonstrations that Flinn Scientific has developed to help you teach this critical factor to your students.  

Common School Laboratory Accidents

We have reenacted a lab fire using methyl alcohol to reinforce safety precautions and demonstrate that these accidents are totally preventable.

Pie Demo

Pie Demo illustrates the concept of moles by answering the question of how many times you have to cut one mole of sugar in half to get one molecule of sugar.

Grease Fire

Grease Fire is a great demonstration showing why you do not want to add water to a grease fire.

Sulfuric Acid & Nylon

Sulfuric Acid & Nylon shows what concentrated sulfuric acid does to clothes.

Contact Lens Demonstration

Contact Lens Demonstration shows that chemicals can seep under the lenses by capillary action, illustrating that they do not offer eye protection.

Goggle Safety

Goggle Safety discusses different types of eye protection that are suitable for various activities, highlighting the importance of wearing them in the laboratory at all times.

Pie Demo

How many angels will fit on the top of a pin? Impossible to say. But with a little thought, your students can figure out how many times they would have to slice a pie to be left with one molecule of sugar!

Grease Fire

Each year hundreds of people are injured, some fatally, by grease fires and their attempts to put them out. This demonstration shows the dramatic and frightening results when water is splashed on burning grease.

Sulfuric Acid and Nylon

Talking about safety and reminding your students to wear their safety goggles can become repetitious and boring after a while. This demonstration will liven up your safety discussion and may make the point—wear your safety goggles!

Goggle Safety

These simple demonstrations will teach your students the importance of wearing safety goggles any time heat, glassware or chemicals are used in a science laboratory.

Contact Lens Demonstration

Many school and industrial laboratories prohibit the wearing of contact lenses in the laboratory. The fear is that chemicals splashed in the eye may wick under the contact lens due to capillary action. The chemicals will then be held in close contact against the surface of the cornea, possibly causing permanent eye damage. This phenomenon can be easily demonstrated.

What You Can’t See

Harmful gases can sometimes be invisible. It is important to always take proper safety precautions any time gases or volatile liquids will be used in the laboratory.

Instant Carnations

A collection of flowers turns different colors upon spraying. Students are impressed—why are various colors obtained with different indicators? Add an aesthetic touch to your science classroom with this unusual demonstration of acid–base properties.

Flaming Fingernails

Synthetic fingernails represent a very serious fire hazard when working around flames.

Understanding LD50 Values

The LD50 value is a technical term used to evaluate and define the acute toxicity of a chemical. Demonstrating the quantity of material corresponding to an extrapolated LD50 value for humans may help teachers and students understand the relative toxicity of different compounds.

Holey Socks!

Laboratory safety rules should include wearing a chemical-resistant apron and closed-toed shoes when working with corrosive chemicals. This safety demonstration offers dramatic evidence to help students remember why these rules are important.

Waft It - Don’t Sniff It!

The importance of learning the proper technique for smelling a substance is demonstrated using a simple pH indicator.

Flaming Vapor Ramp

Vapors originating from volatile, flammable liquids are generally heavier than air and can travel along a countertop to an ignition source. Once the vapors have been ignited, the resulting flames will quickly follow the vapor trail back to the vapor source and may result in a very large fire or explosion.

It Doesn’t Look Hot

Hot objects don’t necessarily look hot! Teach your students that care must be taken whenever working with hot objects. Carelessness often results in burns or destruction of costly equipment.

Melting Bottle

Ever read the hazard warnings concerning the preparation of sulfuric acid solutions? The meaning of a sample hazard warning is clearly explained in this demonstration.

The Laboratory Safety Challenge

Laboratory safety and proper techniques are of key importance when performing a demonstration. Challenge your students to notice as many laboratory safety errors as possible. Students can then generate their own list of safety rules for the lab!

Pie in the Face

This simple demonstration will teach your students the importance of wearing safety goggles any time heat, glassware or chemicals are used in a science laboratory.

The Safe Use of Lasers

The use of lasers in the classroom has significant educational value, and the safe use of lasers in the classroom is possible. With proper usage, no damage to the eyes should occur. However, when lasers are abused, such as directly pointing a laser into the eye, damage may occur.

Cow Eye Demonstration

What is the definition of corrosive? This unforgettable demonstration will imprint forever the definition of corrosive in the students’ minds. Adding acid to a cow eye and then quickly rinsing it off shows students the immediate and irreversible damage that occurs to eye tissue when a strong acid is splashed in the eyes. Students will observe the deterioration of the eye tissue after just a few seconds of exposure to the acid. Teachers often have a difficult time getting students to wear their goggles—this demo is an effective way of solving this problem!

Bunsen Burner Demo

The purpose of this demonstration is to show the proper technique of lighting and adjusting the Bunsen burner and to understand its operation. Regions of combustion and variations in temperature in the Bunsen burner flame are observed by placing pieces of cardboard, glass tubing, wire, wire gauze, and a match in the flame.

Acid in the Eye

Demonstrate the immediate and irreversible destructive action of strong acids using egg whites as simulated eyes.

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