In this paper, we explore the use of concept maps (Cmaps) as instructional materials prepared by teachers, to foster the understanding of chemistry. We choose fireworks as a macroscopic event to teach basic chemical principles related to the Bohr atomic model and matter-energy interaction. During teachers' Cmap navigation, students can experience…

Contrary to popular belief, plants are very much in tune and in time with their immediate environment. The most important environmental cues for plants are light and gravity. In this article, the authors discuss the effects of light on plant development and use the spores of the sensitive fern (Onoclea sensibilis) in laboratory exercises to…