Curated OER
The Nature of Matter
Students compare and contrast how the theory of atomic structure has changed over time. They explore how different people have contributed to our knowledge of the atom and its structure. Students identify how matter is made of discrete...
Curated OER
Crystals: What Are They and What Holds Them Together
Students are introduced to the characteristics of crystals and what keeps them together. Using the Periodic Table, they examine the various elements and develop a model of an atom. In groups, they place sugar and salt in petri dishes...
Curated OER
Niels Bohr
In this online interactive history worksheet, students respond to 9 short answer and essay questions about the achievements of Niels Bohr. Students may check some of their answers on the interactive worksheet.
Curated OER
Plants in Your Gas Tank: From Photosynthesis to Ethanol
Explore ethanol and how it is produced. Young scientists investigate photosynthesis and fermentation to the concept of conservation of energy and mass. They discuss the environmental and economical benefits of ethanol as a fuel additive.
Curated OER
Learning Lesson: Crunch Time
Learners demonstrate the effect of heat on pressure. They use a 2-liter bottle and hot tap water to complete the experiments. They also discuss thunderstorm safety rules.
Curated OER
Consider the Issues
Students develop and express opinions on personal and societal issues in biology through journal entries (written and other forms), oral position statements and group discussions.
American Chemical Society
American Chemical Society: Hompage
ChemCenter, available from the American Chemical Society, provides chemistry news, reference sources and other public services.
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