This document contains 13 low budget labs, demonstrations, and activities to be used in the biology classroom. Each activity has a teacher preparation section which states the purpose of each lab, some basic information, a list of materials and what they do, and how to prep the different solutions and chemicals. All labs are designed for a…

This supplement to the first and second editions of "Invitations to Science Inquiry" contains about 100 more discrepant events (occurrences or happenings which go against what we usually think likely) presented in the second edition plus 50 additional discrepant events. Discrepant events function by causing dissonance between what is…

Described are simulations that can be used to illustrate evolution by natural selection. Suggestions for simulating phenomena such as adaptive radiation, color match to background and vision of predators are offered. (BR)

Describes the construction of a demonstration to show optical activity of table syrup. (Author/CP)

Describes the construction of a flexible coupled-cavity interferometer for student use. A helium-neon laser and phonograph turntable are the main components. Lists activities which may be performed with the apparatus. (Author/CP)

Describes construction of an exhibit which uses the acceleration of an elevator to distinguish mass and weight. (CP)

Activities are suggested and presented in some detail so that science process skills can be applied to the study of energy conservation. Presented are some observing activities and measuring activities. A table presenting energy used by home appliances is included. (EB)

Presents notes on three physics experiments on (1) light and lenses, (2) determination of the pVT surface of a freon, and (3) use of an eyepiece with microscopes and telescopes. (RH)

Describes a set of biochemistry laboratory experiments in which tetrameric hemoglobin is separated into its subunits then formed again by recombination of the subunits. (MLH)

Explains the techniques of experimenting with the protozoan Colpoda cucullus to learn about its habitats, dispersal and adaptations. (LS)

Describes a bird-study and banding activity designed for students in urban and suburban areas. (PEB)

Describes several activities using water as an investigative, manipulative, and highly sensory science material for young children. (Author/PEB)

Discusses many popular carnival rides in relation to the physics of their operation. Includes calculations showing the g force produced by various attractions. (CP)

Proposes a method to estimate the number of civilizations which may exist in the universe. Reviews attempts which have been made to contact these bodies. (CP)