This is an inquiry design lab for students to understand transpirational pull of plants. Like all inquiry labs, it is open for more designs than the one presented in the PowerPoint example. The example in the PowerPoint is the easiest to implement in the classroom. It requires a growlite (a bulb that produces the UV light plants need to grow), a fan, a light source with a 100 Watt bulb, Ziplock bags, rope, and plants that are the same (I use petunias).
The lesson is conducted over the course of a week, with revisions prior to the final presentation. Students only observe their plants for 10 minutes during the day, and then you can lecture for the remainder of the time in whatever subject you are lecturing on. The lesson can also work well for discussing environmental changes and plant responses.
Source and Access Information
Name of Author/Source: Cherie Stephens
District/Organization of Contributor(s): Escambia
Is this Resource freely Available? Yes
Access Privileges: Public
* Please note that examples of resources are not intended as complete curriculum.