Students examine the different types of barrier reefs and how they are formed.  In this barrier reef lesson students complete several activities on coral reefs.

In this English worksheet, students read "Drinking Wine Can Rot Your Teeth," and then respond to 1 essay, 47 fill in the blank, 7 short answer, 20 matching, and 10 true or false questions about the selection.

In this English worksheet, learners read "Breakfast Helps Girls Stay Slim," and then respond to 47 fill in the blank, 7 short answer, 20 matching, and 8 true or false questions about the selection.

For this chemistry worksheet, students answer 2 problems on solution stoichiometry. They calculate the mass of products formed given a certain amount of reactant.

Students use easily obtained materials to study ecological succession in a microbiological community. They collect water samples from outdoor sources in plastic bottles to observe and record changes.

Young scholars explore environmental awareness by participating in a role play activity. In this cultural analysis lesson, students discuss the importance of symbolism when referring to a tribe and create their own tribe based on a small...

Information about the element, Calcium, atomic number 20. Covers physical and atomic properties, sources, its role in geochemical cycles, how abundant it is on the Earth, its isotopes, some compounds of calcium, and its importance to...

A nice Chemicool site with a clearly presented summary of many important properties of calcium.

Here is a chart listing several calcium-rich foods (from all major food groups) and the amount of calcium they have (in micrograms) per serving. Use this chart to keep track of how much calcium you take in each day.

This site has an article on, "The Milky Way galaxy doesn't contain any milk, but it sure does have a lot of calcium. There's enough calcium floating between the stars to fortify trillions about trillions of stars."

A very valuable site with a wealth of data on calcium, its uses and properties and some important reactions involving calcium.

Why is your grandmother always wondering if you are drinking enough milk? Our bones are made out of calcium, a mineral found in milk, and drinking milk can lead to strong healthy bones. What about other animals? What are their bones made...

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.

This site provides a plethora of information regarding calcium homeostatis and interactions of the skeletal system. Disorders such as hypocalemia and hypercalcemia are discussed.

This article explains the difference between calcium carbonate and calcium citrate and why calcium is important for human health.

Kids learn about the element calcium and its chemistry including atomic weight, atom, uses, sources, name, and discovery. Plus properties and characteristics of calcium.

Got milk? Find a detailed summary of calcium and how humans process it in this entry.

The team at Periodicvideos has created a TED-Ed Lesson for every element of the periodic table. This one is about calcium. Professor Poliakoff thinks calcium is a very British element. [8:56]

Information on calcium hydroxide poisoning is given. Its symptoms, treatment, and prognosis are listed as well.

Complete listing of calcium-binding proteins, including specifics on domain binding. Also contains sequence and further structural information.

This site contains general, sequential, and structural information on calcium binding proteins.

Learn about some uses of calcium chloride as a food additive, as a drying agent, for de-icing, in concrete mixes, and for its exothermic properties.

Learn how calcium, and other elements, were discovered by Sir Humphrey Davy, about its chemical properties, and about its uses and applications.

Discusses the physical and chemical properties of calcium chloride.