Allows students to construct organic molecules and many inorganic molecules. Wooden atoms are drilled to accept wooden pegs or metal springs which represent bonding. To make more complex molecules, two or more sets may be combined. Kit consists of balls..

Five experiments in a single study unit. Students will be able to compare the role of an enzyme to that of a reacting substance. Test the effect of enzyme concentration on rate of reaction. Test the effect of pH on enzyme reaction. Observe the effect of..

Make your teaching more effective with a periodic table designed for use in the largest classrooms and lecture halls. Its 243 cm x 121 cm (8 ft. x 4 ft.) size, type styles, and three-color printing ensure maximum visibility. 114 elements. Chart is m..

This kit allows students to “think scientifically.” Its emphasis is on behavioral reaction, rather than what it is. Emphasizes the development of the scientific method of problem solving. Students develop a hypothesis (from experimentation) ..

You no longer have to shortchange your students’ lab experiences because of the difficulties and expense in preparing buffered pH solutions. This kit solves that problem and eliminates the chances for contamination of reagents through student care..

Students perform a total of seven different exercises that involve acids and bases. Hydrogen gas is prepared by each student in an exclusive, safe manner. Exercises include reacting various metals with acids and producing hydrogen in safe quantities; co..

Students learn through standard laboratory procedure to identify three types of chemical reactions: color changes, precipitates, and gas generation. Seven known solutions are mixed into any of 21 possible combinations by the students, and then observed...

This kit allows students to classify various elements as they observe behavior of their compounds. Properties of the halogen family are examined and experimented with, and the formulas of their compounds are determined. Complete for 50 students.

This kit introduces the entire concept of spectrum analysis. By using spray mist bottles to introduce safe water solutions of various salts through a Bunsen flame, tests of metallic ions are observed with a spectroscope. Complete for 50 students.