Curated OER
A Self Directed Inquiry into the Identification of Unknowns
Learners gain experience in designing an experiment and use logic in selecting specific tests for unknowns. Students recognize the use of spreadsheets in helping one to make clear comparisons.
Science Struck
Science Struck: Versatile Uses of Calcium Carbonate
Learn where calcium carbonate can be found and how it is used to support human health, in industry, agriculture, the environment, and in other ways.
Science Struck
Science Struck: Calcium Carbonate vs. Calcium Citrate
This article explains the difference between calcium carbonate and calcium citrate and why calcium is important for human health.
Science Education Resource Center at Carleton College
Serc: Acid Base Titration of an Eggshell
In this lab, students are scientists from the Department of Agriculture and presented with the problem that a farmer has brought to them. The farmer believes the problems are due to illegal dumping of PCB's and other chemicals that...
American Geosciences Institute
American Geosciences Institute: Earth Science Week: Rock Pop
Students investigate the process of rock being eaten away by acid, thus releasing carbon dioxide into the air.
Other
Webmineral.com: Mineralogy Database: Calcite Mineral Data
This site by David Barthelmy gives exceptionally detailed information on the mineral calcite, with photos and clear terminology, crystallography data, Dana and Strunz classifications and much more.
Science Education Resource Center at Carleton College
Serc: Egg Experiments
Two experiments where students investigate with uncooked eggs. In the first investigation, they explore how to remove the eggs outer shell while keeping the rest of the egg intact. In the second, students attempt to shrink the egg...
Missouri Botanical Garden
Missouri Botanical Garden: Tropical Oceans: Coral Reefs
An interesting site about coral reefs. It explores where the reefs are found, what the reefs are, animals that live in the reefs, and preservation of the reefs.
![Women in Mining: Toothpaste With a Twist [Pdf] Activity](http://content.lessonplanet.com/resources/thumbnails/410013/large/bwluav9tywdpy2symdiwmduymc0ymdu4ms0xnhlid28uanbn.jpg?1589984701 "Women in Mining: Toothpaste With a Twist [Pdf] Activity")
Other
Women in Mining: Toothpaste With a Twist [Pdf]
In this activity, students work in groups to create their own toothpaste in order to learn about the rocks and minerals it contains. Includes discussion questions and extension activities.
Smithsonian Institution
National Museum of Natural History: The Allure of Pearls
Exhibition of some of the first known gems to early humans, this collection of pearls includes several world famous precious stones.
Khan Academy
Khan Academy: Glossary: Harnessing Sci and Educ for Biodiversity Conservation
All of the following terms relate to the topic of harnessing science and education for biodiversity conservation.
Curated OER
Science Kids: Science Images: Aragonite Crystals
This photo shows aragonite, a carbonate mineral and one of two crystal forms of calcium carbonate.
Khan Academy
Khan Academy: Infographic: Chemical Abundances: Human Body
Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. View this downloadable infographic on the human body.
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