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What are the health risks of sun exposure—are there any benefits? Also, are some sunscreens better than others?
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Students use food to enhance understanding of physical and chemical changes.
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Science 101: What causes surface tension?
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This column focuses on background science information for elementary teachers. In this month’s column, learn about surface tension.
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Wars are fought over it. The price of it can stir fear, even despair, among us. Energy. Energy drives our universe. Our use of certain types of energy sources may even be destroying our planet. Energy is a difficult…
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One strategy for enhancing students’ understanding of nanoscale is to shift students’ existing understandings of relative scale by helping them conceptually transport their strongest scale benchmark—themselves—into the…
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Safer Science: SDS: Step One to Safety
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This column provides best safety practices for the science classroom and laboratory. This month’s issue discusses the new system of classification and labeling of chemicals.
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What breathes and eats in water, dramatically clamps down on students' pencils, carries eggs that hatch to produce many offspring, excites students tremendously, does not die easily and stinks up a classroom, and--most…
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Sliding common objects, such as blocks, boxes, balls, empty containers, and even play foods down a ramp is a fun way for kids to start exploring some physical science concepts related to the position, force and motion…
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The Case Study: The Benign Hamburger—Teaching the Nuclear Science Behind Food Irradiation
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This column provides original articles on innovations in case study teaching, assessment of the method, as well as case studies with teaching notes. In this month’s issue the case is based on the Jack in the Box food…
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Methods and Strategies: Modeling Problem-Based Instruction
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Students get excited about science when they investigate real scientific problems in the classroom, especially when the investigation extends over several weeks. This article describes a health-science problem-based…
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This article discusses how the evolution of stars from birth in giant clouds of gas and dust to death in catastrophic explosions sets the stage for planets and life to form. This article provides information about the…
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Science Sampler: Simple machine junk cars
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During the month of May, the author’s eighth-grade physical science students study the six simple machines through hands-on activities, reading assignments, videos, and notes. At the end of the month, they can easily…
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Mendel and his peas. Goodall and her chimpanzees. Bentley and his snowflakes. Pasteur and his sheep. Not only do these stories intrigue students, but they also demonstrate the trials and tribulations associated with…
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Reading to Learn Science as an Active Process
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One way to help students learn to read science and teach the content simultaneously is by incorporating classroom strategies that actively engage students in thinking, talking, reading, and writing about science. To…
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Science Shorts: Tangling With Hair
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You're probably familiar with the fairy tale of Rapunzel and how her prince climbed her golden locks to her tower. In this month's activity, your students will be surprised to find that--though not suitable as a ladder…
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