Enhanced curriculum and improved Gizmos

As teachers and students are settling into the school years, we have continued to update the curriculum materials for our science Gizmos. The following Gizmos are the latest to be equipped with Student Exploration sheets, Answer Keys,Teacher Guides, and Vocabulary Sheets:

Rock Classification

Ionic Bonds

Covalent Bonds

Determining Density via Water Displacement

Evolution: Mutation and Selection

In addition, we have spent time this month improving some of our Gizmos. Many of these improvements have been suggested by our users! For example, Rock Classification has been equipped with a new set of rock images that will allow students to identify the rocks more easily based on their appearance. Triple Beam Balance now shows masses to the nearest 0.1 g and the "250 g cube" has been swapped for a cube of unknown mass. Finally, Weight and Mass now has a "Clear scales" button and a digital readout on the spring scale. (To see this, place your cursor over the red pointer on the spring scale.)

We hope these improvements will help you and your students enjoy Gizmos even more. Keep those helpful ideas coming!