It is the job of crime scene investigators to analyze a crime scene and examine/gather various types of evidence that may be used to piece together a possible series of events. One type of useful evidence, particularly in the case of violent crimes, is blood spatter. An investigator experienced in…

Refill Kit Includes: 15mL Potassium Hydroxide 15% 1 pkg Peas Seeds 1 pkg Non-absorbent Cotton 1 pkg Absorbent Cotton DOT Info: Small quantity exemption 173.4 THIS PACKAGE CONFORMS TO 49 CFR 173.4 for domestic highway or rail transport only

KEM-KITS contain a selection of basic small scale glassware for extraction, reflux, reflux with addition, fractionation, distillation (steam, atmospheric and vacuum), as well as for other organic preparations. The fourteen components itemized are supplied in a double-wall heavy-duty…

Kit Includes: 30mL Methylene Blue Loefflers Solution 30mL Methylene Blue Saturated, 1% in IPA/Water 30mL Carbol Fuchsin Solution 30mL Carbol Rose Bengal Solution 30mL Crystal Violet, 1% Alcohol DOT Info: Small quantity exemption 173.4 THIS PACKAGE CONFORMS TO 49 CFR 173.4 for domestic highway or…

Refill Kit Includes: 4 Simulated Urine Samples, 250mL each Patient X Patient Y Patient Z Control DOT Info: Small quantity exemption 173.4 THIS PACKAGE CONFORMS TO 49 CFR 173.4 for domestic highway or rail transport only

This kit is designed for an analyst to perform a simple colorimetric test to determine the nitrite and nitrate concentrations of freshwater samples. The reaction yields an easily identifiable color transition that can be compared with the colors on the color chart determining the concentrations.…

Acid rain is a term used generically to describe any type of acidic moisture, be it rain, snow, or fog. Acid rain can have devastating effects on not only aquatic ecosystems but also terrestrial areas. Acid rain not only affects naturally-occurring surfaces, such as exposed rocky surfaces of…

The E. coli culture is freeze dried into a lyophilized pellet packaged in a sterile plastic vial. The culture includes one tube of rehydrating broth and one tube agar slant, sterile swab and instructions. DOT: Not-regulated

Be prepared for spills in your lab. This kit contains enough material to clean up a liter of four different kinds of chemicals in your lab. Complete with instruction sheets and SDS. Kit Includes: 1100g Diatomaceous Earth (Flammable Absorbent Material) 1.0kg Acid Spill Cleanup Kit (Acid…

Students will study the process of transpiration/transpiration pull and the role it plays in water/nutrient movement in plants. They will study the role of stomata in relation to the transpiration process using a potometer to examine the rate of transpiration in a bean seedling under a select set…

Kit Includes: 1 Instruction Sheet/SDS 2 Nitrile Gloves 2 Polybags 9? x 16? 2 Twist Ties 2 Blank Shipping Tags 1 Dustpan and Brush Set 1 Bag Vermiculite Absorbent 1 Bag Neutralizing Mixture (Citric Acid, Anhydrous & Litmus Powder) DOT Info: Non-regulated

Introduce your students to this valuable separation science in a safe and colorful manner. Unlike DNA and other molecules which cannot be seen during electrophoresis, this activity uses dyes that can be observed during the actual procedure, providing visual reinforcement of the forces driving…

Check out this fun demonstration that is classroom safe and shows the effects of a catalyst on a chemical reaction. Discussion topics can include basic chemical reactions, phase changes and catalysts. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: PS1.A; PS1.B…

Monitor the voltage generated by a biological fuel cell, using the yeast Saccharomyces cerevisiae. A simple sugar will be used as a food source for the yeast and methylene blue will be employed as an electron mediator. The cell will be constructed without the mediator and a baseline voltage will be…

Simply add 250 ml of distilled water to the dry luminol reagent. To utilize the luminol solution, spray the area of interest with the luminol solution and observe for blood evidence. The special luminol formulation does not require a separate hydrogen peroxide catalyst. Once hydrated the solution…

Students will conduct a series of acid-base titrations and determine the concentrations of two unknowns. They will create a procedure to collect quantitative titration data using a buret and pH meter. Using titration data that they collected, they will determine the concentration of each unknown.…

Kit Includes: 30mL Carbol Fuchsin 30mL Safranin O, 1% Aqueous Solution 30mL Ethyl Alcohol, Denatured 30mL Malachite Green Oxalate, 1% Aqueous Solution 30mL Formalin – Nigrosin Solution DOT Info: Small quantity exemption 173.4 THIS PACKAGE CONFORMS TO 49 CFR 173.4 for domestic highway or rail…

Soil composition has been a keystone experiment in earth science classrooms for many years. Our soil analysis kit will teach students the skills needed to properly conduct soil composition tests as well as allow them to collect and evaluate local soil samples. By bringing in local soil samples the…

Aspirin is to this day the most widely used painkiller and largest selling non-prescription medicine in the world. Learn about the history of the development acetylsalicylic acid (aspirin) and test the performance of several different types of aspirin. Students will examine the solubility of…

Colored printing helps your students distinguish between metals, non-metals, and noble gas families as well as allowing them to differentiate types of metals, solids, liquids and gasses from synthetic elements. Name, symbol, atomic number, weight, mass, electron configuration are included. The…

This complete set features high quality borosilicate glass parts and all hardware necessary for simple distillation experiments. Includes: 500ml Round Bottom Borosilicate Flask with Side Tube 300mm Graham Condenser 250ml Erlenmeyer Flask Glass Stopper Support Stand…

This lesson, developed by the American Chemical Society through grants from the National Science Foundation and National Institutes of Health, explores chemical reactions that release energy in the form of light, know as chemiluminescence. Teachers begin with a demonstration that uses a luminol…

Prepare fresh bromine water in a couple of minutes! Save on hazardous transport costs and avoid storing elemental bromine in your storage room. Kit Contains: 2.15g Potassium Bromide 0.6g Potassium Bromate 25mL Sulfuric Acid 50mL Bromine Water-Btl / Label Only DOT Info: Small quantity exemption…

100 strips each in matching color plastic vials. Individual strips are approximately 2" long and 1/4" wide.

Determine ABO/Rh blood type of real human blood in under five minutes. A small amount of blood is applied to a series of wells containing lyophilized blood typing antibodies, followed by the addition of a wash buffer that flows across each well. Red blood cells that agglutinate in the presence of…

Urinalysis, one of the oldest medical diagnostic tests performed, is to this day still one of the most common. In this activity, students will use simulated urine to avoid the unpleasantness of using the real thing while still performing actual tests used on real urine samples. Students will…

The micrococcus luteus culture is freeze dried into a lyophilized pellet packaged in a sterile plastic vial. The culture includes one tube of rehydrating broth and one tube agar slant, sterile swab and instructions. DOT: Not-regulated

Students will design a laboratory procedure to analyze the amount of copper in brass using a spectrophotometer. Students identify the correlation among wavelength, absorbance, and concentration for each of three possible ions that may be obtained from brass: copper, zinc, and iron. The activity…

Correlated to the Next Generation Science Standards This kit is a unique teaching tool for introducing your students to the fascinating chemistry and physics behind invisible inks, i.e. colorless substances usable for writing that can be made to turn to color using a chemical or physical…

Discover the wonders of crystalline growth and properties. In this fun and exciting exercise students will use different solutions to create a range of fun and exciting microcrystalline forms. Then use a microscope or magnifier to study the crystals. Aligned to the Next Generation Science…

Use for blood typing of real human blood. Each vial contains enough antisera for 75 students. Refrigeration recommended until used. Materials from human-derived cell lines were found to be negative in tests for Hepatitis B, HIV and EBV. DOT Info: Non-regulated

Coliforms are a broad group bacteria mostly found in the intestines of warm blooded animals. While these organisms are not typically associated with serious illness themselves, they are often used as indicator organisms. The presence of coliforms may indicate a possible presence of other pathogenic…