This article describes a lesson where students explore the absorbency of several towels with different weaves and weights. The lesson follows the 5E learning-cycle model and incorporates engineering in the sense of product testing with a focus on the relationship between the weave of a towel and its absorbency. The National Science Education…

This month's column features two true stories about the use of chemicals in the middle school science classroom. The lesson of these stories is simple. Certainly, it is prudent to have age-appropriate experiences in science, given the developmental constraints of students in middle school. On the other hand, when the curriculum necessitates…

This article discusses how, as part of a National Science Foundation-funded internship program, the authors translated smart papers into an exciting and informative activity for the middle school classroom. This activity opens students' eyes to an everyday technology and inspires them to ask questions about other hidden technologies that they…

Students who engage in scientific inquiry must be able to evaluate the processes and evidence used to reach conclusions about scientific issues, regardless of whether the process is conducted in the classroom or through an information search on the internet. To explore strategies for integrating information literacy and science, the authors…

Where does cellular respiration take place? How does a plant make food and in turn use the food to produce its own energy? Do animals carry on this process also? To help students answer these and other questions, have them build a model leaf, plant cell, and animal cell. This hands-on project allows students to see and manipulate the reactants and…

Oceans are often considered mysterious, fascinating places filled with unique and scary animals. One of the most misunderstood and therefore scariest animals is the shark, yet the whale shark, the world's largest fish, is considered harmless to humans. This student-directed activity involves research, deductive reasoning, and students' own…

Presents a project in which one science class, curious about large numbers, created one million marks on paper. Discusses other concrete representations of one million and other large numbers. (MKR)

Students should have some experience with science carried out over time periods of several months or an entire school year. Presents suggestions to help teachers start their own bank of ideas for long-term science activities. (PR)

Presents detailed descriptions and diagrams for having students build their own hot air balloons. Describes the educational benefits of the balloon building. (PR)

Presents detailed descriptions and diagrams for having students build their own miniature box kites. Describes the educational benefits of the kite building. (PR)

Describes an activity in which students apply the scientific method as they explore each step of crystal growing. Students select variables, record daily observations, and participate in discussions about the differences in crystal formation. Crystal recipe and procedures are provided. (DDR)

Presents two activities designed to show students some interesting characteristics of weeds. (PR)

Presents simple outdoor activities to show students some characteristics of grasses. (PR)

In this article, the author describes several activities in personal care chemistry that provide middle school girls with opportunities to learn firsthand about science and engineering technology. These activities--the preparation of lip balm and hand lotion--are fun, easy to do, and make use of relatively inexpensive, safe, environmentally…

Describes a project of creating an "Amazing but True!" bulletin board display. Students create miniposters of interesting scientific facts. (PR)