An excellent, faster working, alternative to traditional gravity based liquid filtration. Contents: 500ml Filtering Flask 90mm porcelain Buchner Funnel Hand Vacuum Pump with Gauge Pack of 90mm Filter Papers (pack/100) Rubber Stopper Vacuum Hose Instruction Manual

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…

Electrolysis Unit Hoffman Standard The apparatus is supplied with the Hoffman Glass Collecting Tube and Reservoir #57001. The Collection Tubes are graduated to 60ml x 0.2ml subdivision. The top of each tube is fitted with ground glass stopcocks. The Reservoir Tube is 16" in length and is…

This kit has been designed to allow the analyst to perform a very simple titration to determine the hardness of their freshwater sample. The titration uses an easily identifiable color transition to indicate the end of the analysis. The kit contains everything an analyst would need to perform a…

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…

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

A visual demonstration of the conductive properties of a variety of liquids. The apparatus includes a molded socket on a PVC cover with binding posts for connection of two wire cords. Two electrodes are internally connected to the lamp circuit. The cover is designed to fit a clear glass tumbler.…

In this experiment the indicator eriochrome black T (EBT) is used to signal the presence of ions in the water sample. EBT binds with free metal ions in the water to form a pink complex. EDTA has a stronger affinity for the metal ions than EBT so when EDTA is added it replaces the EBT and the EBT…

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…

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)* …

The classic unit contains J-hook electrodes made with an aluminum rod and platinum foil, graduated collection tubes, an acid resistant base, and glass battery jar. Instructions included.

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

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

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…

The three major classes of matter are elements, compounds and mixtures. The differences between these three classifications is the focus of this lab activity. Students will do three lab activities to help understand the differences between elements, compounds and mixtures. Kit contains enough…

Learn how environmental scientists study pollution by testing air and water samples from your local area! This kit includes nine different tests to determine the air and water quality of samples you collect from your community. Investigate your water quality by testing for dissolved oxygen levels,…

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…

Each vial contains 100 strips, 2" x 1/4"

A complete Electrolysis Unit which consists of a "H"-shaped glass tube that is fitted with graduated gas collection tubes. The "H"-tube is 22mmOD x 150mm length x 75mm width. The collecting tubes are 14mm OD x 150mm length and are graduated to 14mm. The collecting tubes are fitted with a pair of…

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 a…

Refill Kit Includes: 2 x 100mL Ink Remover 10 x 5mL Lemon Juice 10 x 10mL Phenolphthalein 10 x 5mL 1.0 M Sodium Hydroxide 1 x 500mL Chromatography Solvent 1 x 55mL Iodine Solution 10 Pieces Chromatography Paper 10 x 10g Transfer Clay 50 Cotton Swabs 2 Marker A 2 Marker B 2 Marker C 2 Marker D 2 #1…

Learn the role of the kidney in blood filtration and waste removal along with the many functional tasks performed by nephrons, as well as nephron structure. Students will create an artificial kidney model to filter simulated blood. This will allow them to visually determine if filtration of the…

The bacillus cereus 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

In this lab activity students will learn about the history of fingerprinting as a tool for identification. They then will analyze fingerprints for common characteristics and create a classification system using those characteristics. Once they have created a system, they will analyze class data…

Your class will utilize different lab techniques to determine the presence of alcohol, illicit drugs and pain medications present in the simulated urine samples of suspected criminals. The various tests include the Marquis Test for Morphine, Simon’s test for MDMA, THC Immunoassay, Cocaine…

Lyophilized Bacteria in an easy to use self-contained rehydration and dispensing tube. Each tube contains two ampules, one containing freeze-dried bacteria and one containing sterile rehydration broth. Simply pinch the tube to break the internal ampules and let the freezedried organisms rehydrate,…

These PYREX® thermometer adapters have a 24/40 Standard Taper ground joint at one end while the other end is tooled to accommodate a thermometer. The adapter comes with a rubber thermometer holder. For replacement rubber thermometer holders, see No. 7715 (0319W06). This tube is also a…

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…

Students will genetically engineer bacteria through transformation with a plasmid that confers antibiotic resistance. They will then examine the number of resistant bacteria to determine the efficiency of the transformation procedure. Teachers manual and Student Study Guide copymasters are…

Students will study the movement of water and nutrients across a cell membrane and observe osmosis in living tissue. They will then investigate the relationship between surface area and volume as it relates to cells and diffusion. They will also examine the concept of molarity and how it relates to…

Students study the various energy changes that occur with the formations of solutions for laboratory salts. From this data they will create the best and safest hand warmer. Students will determine the heat of solutions for each solid and analyze the cost and safety information with provided safety…

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…