Describes a series of activities exploring Leonardo da Vinci's tree theory that are designed to strengthen 8th grade students' data collection and problem solving skills in physical science classes. (KHR)

Students explore three-dimensional properties by creating red and green wall decorations related to Christmas. Students examine why images seem to vibrate when red and green pieces are small and close together. Instructions to conduct the activity and construct 3-D glasses are given. (MDH)

Presents activities and techniques for introducing students to the concepts of digestion, chemical reactions, and enzymes. (PR)

Presents an activity where students investigate whether crackers contain sugar (Benedict's test solution) and starch (Lugol test solution) before and after being chewed. (PR)

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 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)

Indicates the responsibilities of teachers in understanding the student learning process and focuses on some tools that identify student learning styles such as quizzes, the Myers Briggs Type Indicator, and Multiple Intelligences. (YDS)

Introduces an activity on arthropod genetics that involves phenotype and genotype identification of the creature and the construction process. Includes a list of required materials and directions to build a model arthropod. (YDS)

Discusses and presents activities for learning about plant fossils. The first activity uses teacher-prepared "fossils" made from plaster of Paris. Students attempt to classify the plants. In the second activity, students observe actual plant fossils. (PR)

Presents detailed descriptions and diagrams for having students build their own syringe-powered rockets. Describes how the students can learn about variables that influence the stability of the rockets flight. (PR)

Presents an activity in which students create posters to explain their understanding of electromagnetic radiation corresponding to real world items. (YDS)