pH is a quantitative unit of measure that describes the degree of acidity or alkalinity of a substance. It is measured on a scale of 0 to 14. The formal definition of pH is the negative logarithm of the hydrogen ion concentration (i.e., pH = –log...
Video analysis experiments have strong potential to reinforce student learning and build intuition; however, in the intro physics lab, students often find experimental values that are substantially different from the expected results (e.g., a curve-f...
Wired or wireless—you have the flexibility to choose. Our Go Direct sensors connect directly to Chromebooks, mobile devices, or computers. With both USB and wireless connectivity, you have the freedom to connect to a wide variety of platforms. That...
Understanding enzyme action is a fundamental concept in biology. The “Testing Catalase Activity” investigation in our Investigating Biology through Inquiry book is a very popular activity for investigating enzyme action. Our O2&nb...