Owls have a specialized digestive tract which helps them expel the indigestible parts of their prey in pellet form. Dissecting an owl pellet can teach students the concepts of food webs and food chains while identifying the small animals that are prey for the owls. The pellets are heat sterilized…

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

For Educational, Classroom Purposes Only

A volatile liquid is placed in a test tube and the tube is closed with a stopper with a hole in it. The test tube is placed in a hot water bath. The liquid vaporizes and excess vapors escape through the hole. The tube is then placed in an ice bath to quickly cool the vapor and cause it to condense.…

For Educational, Classroom Purposes Only

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…

For Educational, Classroom Purposes Only

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

For Educational, Classroom Purposes Only

A nutritionally-rich medium for the growth and maintenance of recombinant E. coli used in molecular biology and genetic studies. 500 g Luria Agar (Miller’s) Use 40 grams with 1 liter of water. DOT Info: Non-regulated

An all-purpose medium for the growth and maintenance of a wide variety of fungi and yeasts. 100 g Sabouraud-Dextrose Broth Use 50 grams with 1 liter of water. DOT Info: Non-regulated

Living organisms require enzymes to regulate chemical reactions necessary to maintain life. The activities in this kit are designed to introduce students to the concepts of enzymes. Students perform a series of four experiments involving invertase, amylase and papain, demonstrating different enzyme…

For Educational, Classroom Purposes Only

For Educational, Classroom Purposes Only

Weather impacts everyone, everyday in some way and the meteorologist that study weather patterns are our best source for information. This experiment provides students with the experience of being a meteorologist. It includes studies of pressure changes and creating their own barometer. Studies of…

The idea of the reversibility of chemical reactions was first stated by C. Berthollet in 1799. He noted deposits of sodium carbonate in certain salt lakes in Egypt and concluded that they were produced by the high concentration of sodium chloride and dissolved calcium carbonate. This is the reverse…

For Educational, Classroom Purposes Only

For Educational, Classroom Purposes Only

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…

Allow students to learn about polymers and cross-linking using this fun and colorful activity. Students add a solution of sodium alginate to three calcium chloride solutions, each containing a different fluorescent dye. After a few minutes the liquid sodium alginate solution forms into gel-like…

A crime has been committed and it’s up to you to help prove who did it. This kit has been designed to introduce students to the field of forensic soil analysis by providing them with a set of soil and glass samples that have been recovered from a crime scene to compare with a set of samples taken…

Blood type, an inherited characteristic, has use in everything from forensic investigations to medical procedures. In this activity, students will learn about the genetics that determine blood type and the possible inheritance patterns and how they express themselves. Students will use Innovating…

For Educational, Classroom Purposes Only

How do scientists know if something is alive? There are certain characteristics of all living things that the scientific community uses to judge whether something is alive. On first observation, yeast does not look like a typical living thing. In this activity, students will hypothesize about yeast…

An excellent all-around growth medium for the cultivation of a wide variety of bacteria. Tryptic soy agar is ideal for general growth as well as maintenance of most bacterial cultures. 100 g Tryptic Soy Agar Use 40 grams with 1 liter of water DOT Info: Non-regulated

Calcium carbide is placed in a cylinder containing water. A reaction occurs producing acetylene gas bubbles. A plastic tube from a chlorine gas generator is placed in the cylinder. As the bubbles of acetylene and chlorine collide flashes of light are produced. Aligned to the Next Generation…

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…

For Educational, Classroom Purposes Only

For Educational, Classroom Purposes Only

Show how silicates of divalent ions are insoluble in water whereas silicates of monovalent ions are soluble. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: PS1.A; PS1.B Performance Expectations: MS-PS1-2 Cross Cutting Concepts: Patterns Engineering Practices:…

A good general purpose medium containing all the nutrients necessary for the growth of a wide variety of bacteria and some fungi. 500 g Nutrient Broth Use 8 grams with 1 liter of water. DOT Info: Non-regulated

A solution of sodium hydroxide which is approximately 0.01M will be standardized with a solid acid, potassium hydrogen phthalate, to determine the exact molarity of the base. The standardized base will then be titrated against a monoprotic unknown acid to determine the molarity of the acid. A pH…