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…

The problem of acid rain is quite often associated with its effects on aquatic systems. Unfortunately, acid rain can also have devastating effects on terrestrial environments as well. In this activity, students will examine the detrimental effects of acidic conditions on plants. Plants will be…

Students can observe and measure how muscles contract. The muscles are shipped in glycerol which extracts most of the water soluble material leaving muscle tissue that can be identified and studied using a microscope. The muscle can also be stimulated to contract using the ATP chemical solution.…

Explain the principle of high surface tension as water acts like a membrane stretched across the surface preventing the sulfur particles from sinking. A wetting agent lowers the surface tension and allows the particles to fall through the surface to the bottom of the beaker. Aligned to the Next…

Large Periodic Table of the Elements measures 47" wide and 35.5" tall is easily visible from every corner of the classroom. Durable material will withstand heavy classroom use. Elements included up through UUO #118.

Cholesterol levels can have a major impact on your health and your risk of heart disease. In this activity, students will measure the total cholesterol level for four patients using test strips and simulated blood. After analyzing their results and the lifestyles of each patient, students will…

Students will identify unknown chemicals based on laboratory testing of their physical and chemical properties. Students will identify the 4 different kinds of bonds that exist in chemicals: ionic, polar covalent, nonpolar covalent and metallic. Students review the properties of each solid using…

Students will investigate the suitability of gravimetric analysis for determining the amount of water hardness in the form of calcium carbonate found in various water samples. The activity contains enough materials for 15 groups of students as well as a Teacher’s Guide and Student Study Guide…

Refill Kit Includes: 4 Simulated Blood Samples Donor #1 Donor #2 Donor #3 Patient 1 btl Simulated Anti-A Serum 1 btl Simulated Anti-B Serum 1 btl Simulated Anti-Rh Serum 1 pkg Toothpicks DOT Info: Non-regulated

Hydrogen peroxide is added to a solution of sodium potassium tartrate and heated. Copper sulfate solution is added and the solution turns light blue. With continued heating the solution foams and turns orange-gold. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas:…

Understand the importance and value of fresh water and the need to protect and conserve this valuable resource. Realize that a variety of factors, including natural ones, contribute to the overall problem of water pollution. After completing this lab, students should understand the difference…

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,…

A murder in a quiet house boat community sets the stage for you and your students to test their forensic knowledge. Students will take on the role of a forensic technician as they analyze hair, fiber, fingerprint, blood, and hand writing evidence to help pin point the killer. This kit provides a…

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…

Demonstrate the wonderful, super absorbent properties of a polymer while making snow in your classroom. As the hydrophilic polymer instantly absorbs water, it will expand to over 40 times its original volume. The end result is fluffy flakes of fake snow. Performs 5 demonstrations. Complete with…

Refill Kit Includes: 10g Aspirin 10g Acetaminophen 10g Sodium Bicarbonate Antacid 10g Effervescent Antacid 10g Unknown #1 10g Unknown #2 30ml Universal Indicator Solution 30ml 0.5M Hydrochloric Acid 30ml Ferric Nitrate 1g Simulated Marijuana 10g Simulated LSD 10g Simulated Cocaine 30ml Simulated…

The way in which light is absorbed or reflected by a crystalline material is determined by the structure of the crystal. This crystal structure can be changed by the application of heat. In some cases this change is reversible and the original structure, and therefore the original color, returns…

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

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…

Students will test the solubility of each possible component of a commercially available pain reliever in an organic solvent, ethyl acetate, and in a basic aqueous solution of sodium bicarbonate. These results will help the student create a procedure that will be used to separate components in a…

Refill Kit Includes: 4 Simulated Blood Samples Donor #1 Donor #2 Donor #3 Donor #4 1 btl Simulated Anti-A serum 1 btl Simulated Anti-B serum 1 pkg Toothpicks DOT Info: Non-regulated

While sources of fresh water are usually associated with visible bodies of water such as lakes, rivers, ponds, and streams, the majority of fresh water on Earth is actually underground, collectively referred to as groundwater. Like fresh water found on the surface, groundwater can flow beneath the…

While over 99% of DNA is the same among all humans, the remaining part is unique to every individual (with the exception of identical twins). These differences are hereditary, with parts of the unique sequence coming from each parent. By using DNA fingerprinting, or DNA profiling, a child’s…

This kit has been designed to allow students to test their own saliva to determine their ABO blood type. Students that are part of the ~80% of the human population that secrete their blood antigens with perform titers to understand which blood type they belong to. These titers will be performed…

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…

Study both processes of endothermic and exothermic reactions. Reactions are safely carried out in plastic bags. The students can pass the bags around to feel the results of the reactions. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: PS1.A; PS2.B Performance…

Students will be guided through an investigation to study food dyes and determine how the absorbance of light can be used to study color and determine concentrations of chemicals in solutions. The activity contains enough materials for 15 groups of students as well as a Teacher’s Guide and Student…

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…

Explain how there are exceptions to the rules of chemistry. Heat a solution and watch it form a precipitate. Watch it go back into solution as it cools. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: PS1.A; PS1.B Performance Expectations: MS-PS1-2 Cross Cutting…

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

Chlorophyll is the most prevalent and well-known plant pigment related to photosynthesis. It is not, however, the only plant pigment necessary for photosynthesis to occur. Other pigments are involved in the process. These pigments are often overlooked as they tend to be masked by the abundance of…

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…