Discusses the use and significance of geologic generalizations. Provides examples of different types of geologic observations and describes how they relate to the way explanations are formulated. Proposes that the mentioned generalizations be regarded as "laws." (ML)

Discusses the physics principles applied to the main steps of the photocopying process. Of particular interest (and at the heart of the process) are the ways in which electric charges, or particles carrying charges, are caused to transfer from one surface or medium to another at each stage. (JN)

This paper examines how using a series of lessons developed from the history of research on sickle cell anemia affects preservice teacher conceptions of the nature of science (NOS). The importance of a pedagogy that has students do science through an integral use of the history of science is effective at enriching students' NOS views is presented.…

Scientific inquiry reflects how scientists come to understand the natural world, and it is at the heart of how students learn. From a very early age, children interact with their environment, ask questions, and seek ways to answer those questions. Understanding science content is significantly enhanced when ideas are anchored to inquiry…

NASA CONNECT is an annual series of free integrated mathematics, science, and technology instructional distance learning programs for students in grades 5-8. This video presents the World Space Congress 2002, the meeting of the decade for space professionals. Topics discussed range from the discovery of distant planets to medical advancements,…

The guide presents lesson plans from "NOVA" which targets middle school and junior high school students and meet the National Science Education Standards. Lessons include: (1) "Neanderthals on Trial"; (2) "Fireworks"; (3) "Secrets, Lies and Atomic Spies"; (4) "Bioterror"; (5) "The Missing…

This guide introduces the Craftsman/NSTA Young Inventors Award Program and includes information on competitions, science activities, and tips on how to facilitate invention programs. Sections include the following: (1) "Introducing the Craftsman/NSTA Young Inventors Awards Program"; (2) "Teaching Invention"; (3) "Young…

This paper explores the nature and structure of scientific models by taking the position that representations are not models themselves. Representations of models are essential tools for communicating and conversing about the scientific models underlying them. A scientific model is considered to be a set of ideas that describe a natural process. A…

This paper reports on critical Action Research into the scientific literacy of secondary school students, as evidenced in student Reflective Dialogue Journals. Focussed on one secondary school classroom located in Brisbane, Australia, the research draws on literature concerned with writing and its use across the curriculum, particularly as this…

Inquiry-based research is recommended as a method for helping more students understand the nature of science as well as learn the substance of scientific knowledge, yet there is much to learn about how teachers might adapt inquiry for science teaching and what teachers need to know in order to do this. This case study of an exemplary teacher's…

One way to achieve a higher level of agreement on the nature of science (NOS) within the science education community is to embrace the two major documents, Benchmarks for Science Literacy (1993) and National Science Education Standards (1996). Both Benchmarks and Standards have many statements on the nature of science that can be used as the basis…

This textbook presents elementary principles of mechanics, hydrostatics, hydraulics, pneumatics, acoustics, pyronomics [sic], optics, electricity, galvanism, magnetism, electromagnetism, magneto-electricity, and astronomy. Among topics covered are descriptions and illustrations of McCormick's reaper, Sharps' Rifle, printing presses, House's…

Analyzes the nature and characteristics of the scientific endeavor to compare with that of children's play. Describes science as a form of religious sacred play which creates a world of make-believe that one may enter if one chooses to play. (CC)

Presents theoretical fundamentals of sideways forces exerted on a cricket ball, an aerofoil, and a yacht, involving the properties of boundary layers and a description of velocity and circulation. (CC)

Discusses a light scattering instrument designed to measure the size of particles in an air flow in approximately 25 microseconds and at a concentration as high as 10,000 particles/cc. Indicates that the measurement can be made for all particles, independent of their index of refraction. (CC)