Students determine whether longer strips of Mg metal produce accordingly more H 2 . 1. Measuring length and volume 1. Graphing 50 Determining the Percentage of Oxygen in the Atmosphere 1. Students make and test oxygen. Measuring 52 Batteries 1.
Students make and test a battery.
Graphing 53 Electrical Conductivity of Solutions 1. Students make a conductivity tester and use it with different solutions. Measuring 54 Electroplating 1. Students electroplate copper.