Presents three activities using pearl onion bulbs to illustrate plant growth and plant propagation under various conditions. (WRM)

Presents several activities designed to teach students about the characteristics, classification, life cycle, and uses of the luffa (gourd). (WRM)

Enables students to examine the time course for seed imbibition and the pressure generated by imbibing seeds. Provides background information, detailed procedures, and ideas for further investigation. (DDR)

Describes activities on two storage organs, carrots and radishes, which are plants that store some of the food their leaves make in modified roots, stems, and even leaves. (ASK)

Presents a project that allows students to observe and show how quickly pollutants in the air and on the ground destroy plant life. Appropriate for grades four through six. (JRH)

Presents an activity in which students use a discovery approach to learn about seed texture, similarities and differences among seeds, and which seeds grow on which trees. (MKR)

Uses diagrams and text to describe four activities involving trees designed to aid students in better understanding responses to seasonal changes (ZWH)

Discusses the importance of maintaining links between school children and the outdoors. By creatively looking for outreach programs and simple animal activities, teachers can keep students' innate interest in nature alive. Studying nature can also teach students about interdependence. (SAH)

Presented is a discussion of the natural history of the dandelion. Three activities involving study of dandelions are presented. Each activity includes discussion of purpose, skills, and materials needed. (RE)

Describes a simple and inexpensive way to construct two small growth chambers for studying phototropism in the science classroom. One chamber is designed to illustrate how plants grow around obstacles to reach light and the other to illustrate directional light responses. (HM)

Describes an open-ended activity in which students build a "plant" that launches its seeds as far as possible to study the dispersal strategies of various plants. Recommends extension activities for elementary- and secondary-level students. (WRM)

Classroom plant activities have long been inexpensive, easy to do, and fun for students, and have become more central to biology teaching. Introduces some plant science activities and their pleasures and pitfalls. (ASK)