Points out the importance of an understanding of a sense of scale and presents an activity that uses distance or time as a measure. The activity illustrates for students what the universe would look like at various scales. (DDR)

This booklet contains information and activities on the life cycle of stars. Materials can be adapted for kindergarten through grade 8 classrooms. Background information on massive stars and medium stars and activities with subjects such as star life, constellation shapes, nebula terminology, astronomical distances, and pulsars is included. The 12…

Points out that the standard bell-jar model used to illustrate breathing has some features that may lead to a misunderstanding of the mechanism of ventilation. Proposes modifications to the model. (DDR)

Presents an activity on the electrostatic phenomenon known as induction. Reviews the principles illustrated by each of the activities described in this series. (DDR)

Presents a modification of a procedure for making and launching hot air balloons made out of garbage bags. Student instructions for balloon construction, launching instructions, and scale diagrams are included. (DDR)

Provides information on the use of a toy engine with no visible power source that is designed to demonstrate the conversion of low-temperature thermal energy to mechanical energy by means of a Nitinol loop wrapped around a system of two pulleys. (DDR)

Presents three demonstrations that can help teachers explain crystal properties. The equipment used includes a laser, quartz crystals, and chalk dust. The laser light enables students to observe characteristics of structure that cannot be made with white light. (DDR)

The fourth of four levels in a K-12 science curriculum is outlined. In Level 4 (grades 9-12), science areas include earth science, biology, chemistry, and physics. Six major themes provide the basis for study in all levels (K-12). These are: Change, Continuity, Diversity, Interaction, Limitation, and Organization. In Level 4, all six themes are…

This booklet contains information and activities on the life cycle of stars. Materials can be adapted for grade 9 through grade 12 classrooms. Background information about star birth and life, black dwarfs, supernovae, white dwarfs, neutron stars, black holes, and the electromagnetic spectrum is included. The seven activities focus on star mass,…

Cites three incidents of cargo being lost at sea. Discusses ocean currents and directs students in an activity to explore what happens to the floating debris from lost containers. (DDR)

Provides details of an activity in which students spear a toy fish and learn about the refraction of light. Plans for the sighting apparatus and for making the toy fish are included. (DDR)

Describes a student activity that focuses on color and the production of images on computer monitors. Students discover the rules for making colors through the use of a magnifying glass and a computer monitor. Includes some tips for integrating the activity into the curriculum. (DDR)

Presents hands-on activities that give students a head start in learning the vocabulary and basic theory involved in understanding atomic structure. Uses beads to represent protons, neutrons, and electrons and string to represent orbitals. (DDR)

Favorite science topics like seeds and plants, evaporation, light and shadow, and animal observation are the subjects of the eight windowsill science centers included in this book. Each of the science centers includes a discussion of the process skills that students will use, several hands-on activities, explanation of key concepts and vocabulary,…

This unit, one of a series being developed for Australian secondary school science courses, consists of a teacher's guide, two student booklets, a test booklet, and a student workbook which also contains answers to questions raised in the student booklets, and a answer sheet containing comments on the answers to the questions in the test booklet.…