Describes the working of the Science Task Group on the place of investigation in the National Curriculum in England and Wales. (PR)

Describes a student project to build a car powered by the energy in a mousetrap as part of a unit on simple machines. (PR)

Presents a three-lesson unit that uses fractal geometry to measure the coastline of Massachusetts. Two lessons provide hands-on activities utilizing compass and grid methods to perform the measurements and the third lesson analyzes and explains the results of the activities. (MDH)

Describes the construction of a demonstration apparatus to illustrate the law of strings by using the light from a television screen to slow down the apparent motion of the waves of a string. (MDH)

Describes relatively simple and inexpensive experiments for demonstrating the immune response to honeybee venom in the American cockroach, "Periplaneta americana." (PR)

Presents three inquiry-based lessons to develop the science process skills of observation, identification, and classification. Activities use whelk eggs and snail shells as the focus of the students' inquiries. Provides a list of 19 facts about whelks and snails. (MDH)

Provides instructions for teachers and students to culture protozoans for use in science laboratories. Sections include setting up a culture area, basic culture media, amoeba culture technique, powdered milk-wheat-rice medium, alfalfa medium, and uses of the protozoa in the laboratory. (PR)

Describes a technique to isolate unsheared bacterial DNA and subject it to restriction endonuclease enzyme digestion. (MDH)

Describes an activity using a world globe, some golf tees, and a sunny day to help students understand daily and seasonal time differences. (PR)

Explains why groundwater is important and provides basic facts about groundwater. Presents student activities for understanding groundwater and porosity. Includes a color poster. (PR)

Describes a science competition challenge that has students solve several hands-on physical science problems, thus reinforcing both problem-solving skills and science knowledge. (PR)

Describes combining poetry with science education, to help improve students' summarizing skills. Describes different types of poems (acrostics, zigzag, formula, haiku, syntu, diamonte, and found) and explains how they can be used in science learning. (PR)

Describes an atom-building activity where students construct three-dimensional models of atoms using a styrofoam ball as the nucleus and pom-poms, gum drops, minimarshmallows, or other small items of two different colors to represent protons and neutrons attached. Rings of various sizes with pom-poms attached represent electron shells and…

Describes making three-dimensional models of cells, creating a mitosis bulletin board, and creating flip books to help students understand mitosis. (PR)

Describes using tetrazolium chloride as a chemical test for seed germination. (PR)