Provides descriptions of Physics Olympics events in which physics students collect acceleration data while riding on amusement park rides. (MKR)

Details a laboratory experiment focusing on the relationship between the structure and function of the tracheary elements of the xylem. (MKR)

Presents activities designed to introduce the concept of fossils to middle school students and to clarify students' misconceptions about what is, and is not, a fossil. (JRH)

Describes the use of carbide lights as an excellent mechanism for introducing or reviewing many basic chemistry concepts including elements and compounds, endothermic and exothermic reactions, physical and chemical changes, and balancing chemical equations. (JRH)

Discusses enzymes, catalysts, and factors that affect the rate of a chemical reaction. Presents activities based on enzyme action on hydrogen peroxide and lactose intolerance. (Author/JRH)

Presents an illusional arena by offering experience in optical illusions in which students must apply critical analysis to their innate information gathering systems. Introduces different types of depth illusions for students to experience. (ASK)

Presents a microbiology experiment on how to make soft pretzels with different flours and analyze the results using regression models. (Contains 12 references.) (ASK)

Indicates the difficulties of teaching concepts beyond light and color and creating memorable learning experiences. Recommends sequential activities using the mystery box approach to explain how scientists and doctors use photon applications. (YDS)

Describes an activity for observing the pressure differences between mountain air and sea level air by bottling air. (YDS)

Introduces an activity concerning air pressure. Using an egg and a heated bottle, the air inside the bottle draws the egg into the bottle. (YDS)

Presents an activity in which students use microscopes and digital images to examine Elodea, a fresh water plant, before and after the process of plasmolysis, identify plant cellular structures before and after plasmolysis, and calculate the size of the plant's vacuole. (ASK)

Points out the importance of effective health education to fight against tuberculosis (TB) which is the number one fatal infectious disease around the world. Describes a science curriculum on tuberculosis that includes information on the facts about tuberculosis, a forum on tuberculosis, and evaluation. (Contains 17 references.) (YDS)

Explains how to use magnets to demonstrate the electron flow mechanism of a chemical reaction. (YDS)

Describes an activity using rubber bands to demonstrate Gibbs free energy, entropy, and enthalpy. Includes instructor information and a student activity sheet. (YDS)