Sodium Hydrogen Phosphate (Dibasic) (CAS # 7558-79-4) 1 pack to make 1 liter 0.001M solution DOT Info: Non-regulated

Part chemistry, part biology, and part physical science, forensics is the investigation of a crime using a full range of scientific knowledge or methods. Introduce your students to the investigation with several different types of possible evidence, such as; fingerprints, blood detection/blood…

The probability that a photon of light will be absorbed by a solution is directly proportional to the concentration of the absorbing molecules, the thickness of the sample and the degree to which the molecules absorbs light. This relationship is called the Beer-Lambert Law and is used in analytical…

For Educational, Classroom Purposes Only

For Educational, Classroom Purposes Only

For Educational, Classroom Purposes Only

For Educational, Classroom Purposes Only

For Educational, Classroom Purposes Only

For Educational, Classroom Purposes Only

A medium helpful in differentiation of the Enterobacteriaceae. Simmons citrate agar test for organisms that are able to utilize citrate as a carbon source. Organisms that can utilize citrate produce an alkaline carbonate changing a pH indicator in the agar from green to blue. Some citrate negative…

An all-purpose medium for the growth and maintenance of a wide variety of fungi and yeasts. 1 Kg Sabouraud-Dextrose Agar Use 65 grams with 1 liter of water. DOT Info: Non-regulated

For Educational, Classroom Purposes Only

In this experiment, you will prepare three buffer solutions having different pH values and show that the pH of these solutions does not change significantly when small amounts of acids and bases are added. You will also show that when the same amounts of acids and bases are added to water and to a…

Sodium Bromide (CAS # 7647-15-6) 1 pack to make 1 liter 0.1M solution DOT Info: Non-regulated

DNA fingerprinting is one of the strongest forms of evidence in forensic investigations. In this activity students will perform agarose gel electrophoresis on four DNA samples to determine if DNA from suspects matches that of DNA found at a crime scene. Students will also learn about restriction…

For Educational, Classroom Purposes Only

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…

Students can grow their own bacteria with this hands-on, easy-to-use kit. They will be able to swab various surfaces around the classroom such as door handles and sinks to inoculate agar plates. Students will also investigate the levels and importance of bacteria in everyday situations. Kit…

For Educational, Classroom Purposes Only

In this lab, you will gain an understanding of the basic differences between the properties of acids and bases, learn the role of hydrogen and hydroxide ions in acids and bases, and comprehend the nature of the pH scale with regards to acid and base strength. Students will examine the effects of…

For Educational, Classroom Purposes Only

Create your own volcano for a science fair demonstration. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: PS1.A; PS1.B Performance Expectations: MS-PS1-2; HS-PS1-2 Cross Cutting Concepts: Patterns Engineering Practices: Analyzing and Interpreting Data; Scientific…

For Educational, Classroom Purposes Only

Designed for young elementary students to help them examine and understand the needs of plants for growth and survival. This kit contains materials for 15 groups of two to dissect and germinate seeds, and compare their plant’s growth to other types of plants grown in the classroom. Aligned to the…

For Educational, Classroom Purposes Only

Catalysis is a basic principle of chemistry and biochemistry. Some reactions are autocatylic; the product of the reaction actually catalyzes further reactions. The reaction is initiated with acid and produces acid to continue the reaction. Aligned to the Next Generation Science Standards (NGSS)* …

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…

Alizarin Yellow R (CAS # 1718-34-9) 5 pack to make 5 x 1 liter 0.01% solution DOT Info: Non-regulated

Nile Blue (CAS # 3625-57-8) Makes 100mL 0.1% solution DOT Info: Non-regulated

This is a single replacement reaction in which the zinc metal dissolves in solution and tin metal is formed. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: PS1.A; PS2.B Performance Expectations: HS-PS1-1 Cross Cutting Concepts: Patterns Engineering Practices:…

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:…

The bacillus subtilis 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