Wiessinger, John2008-01-312008-01-312008-01-31https://hdl.handle.net/1813/9500Part of the Grab and Go With Science series, this game introduce students to dichotomous (two-choice) keys -- or scientific names. Keys are usually used to help discover the names of plants or animals. For example, you can use a key to find the name of a tree by looking at a leaf. This activity uses common classroom objects, such as pens, erasers, rulers, etc., to teach students how keys are made and how they work.