by STAO ADMIN | Nov 14, 2019
A pendulum is constructed from a 1.0-kg mass suspended from the ceiling, with a length of strong string long enough so that, when pulled about 40o from the vertical, the mass comes to nose level. The pendulum will be released from this position. The demonstrator is to...
by STAO ADMIN | Nov 14, 2019
If equilibrium is to be achieved, opposing reactions must take place in a closed system at the same rate. The two reactions, known as forward and reverse reactions, shown by a general reaction such as: A + B C When the forward and reverse reactions are taking place at...
by STAO ADMIN | Nov 14, 2019
In this demonstration, students will see how an antibody can disable antigens to help eliminate foreign invaders from the body and prevent humans from getting sick.
by STAO ADMIN | Nov 14, 2019
This activity introduces students to the concept of building a galvanic cell and generating a cell potential (or voltage) from a battery of galvanic cells connected in series. The galvanic cell used involves two readily accessible metals and an easily prepared...
by STAO ADMIN | Nov 14, 2019
This demonstration will provide students with a visual representation of the structure of DNA. Students will learn the different components that make a nucleotide, the correct base-pair connection between nitrogenous bases, and visually see the double helix structure...
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