After a compound has been synthesized, analytical tests should be carried out to confirm that the correct compound has been produced. In this lab we will perform tests to confirm that the crystals formed are in fact potassium aluminum sulfate 12 hydrate by comparing the melting point to published…

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…

Prepare a flask containing a yellow solution, as you mix it on a magnetic stirrer the solution will turn from yellow to blue and back to yellow. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: PS1.A; PS1.B Performance Expectations: MS-PS1-2 Cross Cutting…

Students will study electrochemical series. The electrochemical series is built up by arranging various redox equilibria in order of their standard electrode potentials (redox potentials). When a strip of metal (an electrode) is placed in water the metal has a tendency to go into solution as ions…

Be prepared for spills in your lab. This universal absorbent eliminates the guesswork and is safe for use on all chemicals except hydrofluoric acid. This kit contains enough material to absorb 10 liters of solvent. Complete with instruction sheets and SDS. Kit Contains: 1.1kg Universal Absorbent 1…

Be prepared for spills in your lab. This kit contains enough material to clean up a liter of a 10% formalin solution. Complete with instruction sheets and SDS. Kit Includes: 2 Nitrile Gloves 2 Polybags 9? x 16? 2 Twist Ties 2 Blank Shipping Tags 1 Dustpan and Brush Set 1 Bag Vermiculite Absorbent…

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…

Allow students to see how chemistry can be used in a beneficial manner. Most students are probably familiar with heat packs, or hand warmers. Utilizing the release of chemical energy, these self-contained exothermic reactions are quite useful in cold environments. In this activity, students will…

After a class discussion of matter and the fact that matter may differ from other matter in a variety of ways, students will examine three different solids individually and observe some differences in physical properties. Sand, iron filings and salt will be observed and tested using water and…

Ball-and-spoke structural models of graphite, sodium chloride and diamond. All models are permanently mounted on acrylic bases: Graphite (Clear hexagonal base); Sodium Chloride (Clear square base); Diamond (Clear triangular base). Each model contains 22mm diameter balls: Graphite (39); Sodium…

Prepare your own squashed stained slide and be able to identify the phases of plant mitosis and chromosomal development. Students will be able to prepare, stain and mount slides using specially prepared onion root tips. Kit contains enough material for 15 groups. Teacher’s Manual and Student Study…

How do scientists identify an unknown solution? What makes one solution different from another? The experiments in this kit will help students understand the impact different chemicals have when added to a solution. Student will test the unknown solutions and determine the identity based on a…

Prepare your own squashed stained slide and be able to identify the phases of plant mitosis and chromosomal development. Students will be able to prepare, stain and mount slides using specially prepared onion root tips. Kit contains enough material for 5 groups. Teacher’s Manual and Student Study…

Students collect data using different solvents to identify the optimal solvent for separation. They will then illustrate the intermolecular forces that are acting on the molecules in the separation. Students evaluate the chromatograph with different solvents and establish a connection between…

Top quality Molymod molecular model sets are for use by students, teachers, and researchers. May be upgraded or customized with additional model parts, for more info, go to sigma-aldrich.com and enter Molymod in our search engine. Scale is 2.8 cm =100 pm (open style) and 1.45 cm = 100 pm (compact,…

This is a two part test to determine whether a surface has been exposed to a discharged firearm. A rapid color change takes place to verify the presence of nitrates and lead. Kit contains instructions and enough materials for 30 tests. Aligned to the Next Generation Science Standards (NGSS)* …

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…

Anesthetize Drosophila melanogaster fruit fly)and other small insects for at least 40-50 minutes without killing or sterilizing. Includes instructions. Kit Includes: 25mL Anesthefly Solution Cotton Tip Swabs Sorting Brush Vial DOT Info: Small quantity exemption 173.4 THIS PACKAGE CONFORMS TO 49…

Why are raindrops the shape that they are? How do detergents work? Simply put – surface tension. This kit contains materials to demonstrate the concept of surface tension to your classroom using soap as a power source! Kit contains enough materials for 6 groups of 4. Aligned to the Next Generation…

Study the process of exothermic reactions. The reaction is safely carried out in a plastic bag. The students can pass the bag around to feel the result of the reaction. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: PS1.A; PS2.B Performance Expectations:…

In this lab, the student learns the difference between forensic chemistry and forensic toxicology. They gain knowledge in understanding how over-the-counter drugs, controlled drugs, and illegal drugs may act as toxins. Students will have the opportunity to perform presumptive chemical tests on…

The Gram stain is one of the most important differential staining techniques used by microbiologists to determine if bacteria are Gram-positive or Gram-negative. Kit Includes: 4 x 25mL Ethyl Alcohol, Denatured, 95% 1 x 30mL Crystal Violet Ammonium Oxalate 1 x 30mL Safranin O, 1% Aqueous Solution 1…

The most convenient reference guide available- the Periodic Table Pen. This pen holds a double sided updated 2016 Periodic Table. The back side is a handy miniature reference chart. A great reference right at your fingertips! DOT Info: Non-regulated

This basic microscope slide-making kit will get you started mounting your own slides. Kit Includes: 25mL Synthetic Balsam 1 Microscope Slide, Pack/72 1 Coverslips, Pk/100 1 Forceps DOT Info: Small quantity exemption 173.4 THIS PACKAGE CONFORMS TO 49 CFR 173.4 for domestic highway or rail…

Often times, when collecting evidence at a crime scene, investigators may recover substances they are unable to identify in the field. Along with evidence such as fingerprints, hair, fibers, etc., there may be traces of unknown chemicals or powders left behind by the perpetrator or perpetrators.…

TLC is a technique of separation chemistry, which provides a simple, rapid method of separating small amounts of compounds. A mixture of three dyes is prepared and then separated on a thin layer of the absorbent silica gel with the appropriate solvent. Aligned to the Next Generation Science…

The school library’s computers have been stolen. Left behind was a ransom note demanding money. Help solve the crime using thin-layer chromatography to separate the ink on the ransom note and ink found in markers tied to possible suspects. It may be possible to provide evidence as to whether or not…

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…

For blood typing using real human blood. 5 mL vials contain enough antisera for 75 students. Sample will keep over one year with proper refrigeration. FOR EDUCATIONAL USE ONLY. NOT FDA APPROVED FOR CLINICAL USE. DOT Info: Non-regulated

In this lab you will learn the history of the discovery of DNA and DNA structure. Understand the nature of genetic inheritance and the role of DNA and proteins in genetic expression while using biological detergents, enzymes, and ethanol to isolate DNA from plant material. You need to supply the…

Discover how forensic scientists use hair to assist in solving crimes. You will discover the differences between human and animal hair as well as differences among different types of human hair. In the second part of the activity, you will try to determine the origin of a hair sample from a crime…