Concord Consortium
Polarization
This is one cool resource for teaching about polarity! Chemistry scholars observe electron distribution and molecular shape as they select different non-metals and form bonds. The interactive offers two views, surface charge and electron...
Howard Hughes Medical Institute
Winogradsky Columns: Microbial Ecology in the Classroom
Substances that decompose with the help of living organisms do so at different rates. Scholars experiment with Winogradsky columns to determine the rate of decomposition, the oxygen and sulfide content changes, and bacteria levels. The...
National Institute of Open Schooling
p-Block Elements and Their Compounds – II
Ozone, made of three bonded oxygen atoms, is found 15-30 km above Earth, has a strong smell, is blue, and blocks sunlight from hitting the surface of Earth. The 22nd lesson in a series of 36 specifically focuses on the important elements...
It's About Time
Volcanos and the Atmosphere
In the summer of 1815, snow fell every month in New England. Was this related to the volcanic eruption of Tambora in Indonesia earlier in the year? Young scientists design their own experiments to research the long-term effect a volcanic...
Curated OER
Group 16, The Oxygen Group
The trends in group 16 and the characteristic behavior of the elements involved are listed here. Their properties also help support their function. Explanations of the atomic structure and valence electron number are not included. Since...
Curated OER
Soil Fertility
Fertility in soil is the topic of this presentation. Future farmers will be able to define fertilizer, list ten essential soil elements, and describe the roles of both primary and secondary nutrients in plant production. Although there...
Curated OER
Acid Rain
In this acid rain activity, students review the causes of acid rain and the effects of acid rain. This activity has 19 fill in the blank questions.
Curated OER
Introduction to Biomolecules
Learners are introduced to biomolecules and their roles in livin systems. They are introduced to the "Elements of Life." Students write down and define the "Elements of Life." They are asked why they think those elements are essential...