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- Calcium helps the development of bones in children and adolescents. Calcium can help treat certain bone diseases, like osteoporosis. Dairy products typically are rich in Calcium, like cheese and yogurt. Calcium intake that exceeds nutritional recommendations can increase the risk of kidney stones.
www.factsjustforkids.com/chemistry-facts/calcium-facts-for-kids/Calcium Facts for Kids - Facts Just for Kids, Teachers and ...
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22 Calcium Facts for Kids. Calcium is a chemical element on the periodic table. Calcium was isolated and first discovered by Cornish chemist and inventor Humphry Davy in 1808. Calcium is a solid at room temperature. The symbol for calcium is Ca.
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- Properties
- History
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- Food Sources
- Bone Disease
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Physical properties
Calcium is a soft white-gray metal. It is a solid and is opaque. It is an alkaline earth metal. Its melting point is hotter than most other reactive metals. It is a little harder than lead. It has two allotropes. It does not conduct electricity as well as copper, but is much lighter in weight.
Chemical properties
It reacts with water to produce hydrogen and calcium hydroxide. It reacts with water very fast when it is powdered. When it is in a chunk, it starts reacting slowly because calcium hydroxide makes a coating that does not dissolve on the calcium. If a little acid is added to calcium hydroxide, it dissolves it, making the calcium react very fast. It burns when powdered to make a reddish flame. This makes calcium oxide. It also makes calcium nitride when heated. It can react with halogens to mak...
Calcium compounds
Calcium forms chemical compounds in the +2 oxidation state. Calcium compounds are colorless. Most calcium compounds are not toxic. They are needed in the human body, actually. They are unreactive as far as calcium ions go. Calcium oxide was used to make limelights, which have a flame heating calcium oxide and makes it glow very bright. 1. Calcium bromate 2. Calcium carbonate 3. Calcium chloride 4. Calcium hydroxide 5. Calcium nitrate 6. Calcium nitride 7. Calcium oxide 8. Calcium permanganate...
Calcium compounds were known for millennia, although their chemical makeup was not understood until the 17th century. Lime as a building material and as plaster for statues was used as far back as around 7000 BC. The first dated lime kiln dates back to 2500 BC and was found in Khafajah, Mesopotamia. At about the same time, dehydrated gypsum (CaSO4·...
In the ground
Calcium is not found as a metal in the ground; it is too reactive. Calcium carbonate, also known as calcite, is the most common calcium mineral.
Calcium in cells
It is important to know how cells work. Many cells have calcium channels on their surface. These are openings where calcium ions can enter the cell. The cell is told to act and it opens the channels. Once in the cell calcium ions activates many proteins to do specific things. For example, when it goes into muscle cells, it makes them contract (shorten so the muscle pulls.) When it goes into nerve cells, it triggers electrical impulses that send a messages. When it goes into white blood cellsi...
Calcium storage
Bones contain most of the calcium ion in the human body. If we need more calcium for our blood, muscles, or other tissue, it comes from the bones. If we have extra calcium it goes into bones. Calcium as an element is not found in the human body, just calcium ions in the form of chemical compounds.
Calcium metal is made by electrolysis of melted calcium chloride. It has to be very hot to melt it. The calcium metal is liquid.
As an element
Calcium is used in the reductionof other metals. It can also be used to make alloys with other metals.
As chemical compounds
Calcium compounds are also important in chemistry. It is important for making things. It is a part of cement which is needed to make concrete(a hard substance that many buildings are made from.) Calcium is part of calcium oxide. Calcium oxide is used to make paper, pottery, food, and to purify water (make it good to drink.) Calcium carbonate is used in multivitamin dietary supplements. Calcium permanganate can be used as a rocket propellant.
Foods rich in calcium include dairy products, such as yogurt and cheese, sardines, salmon, soy products, kale, and fortified breakfast cereals. Because of concerns for long-term adverse side effects, including calcification of arteries and kidney stones, both the U.S. Institute of Medicine (IOM) and the European Food Safety Authority (EFSA) set Tol...
As calcium is required for bone development, many bone diseases can be traced to the organic matrix or the hydroxyapatite in molecular structure or organization of bone. Osteoporosisis a reduction in mineral content of bone per unit volume, and can be treated by supplementation of calcium, vitamin D, and bisphosphonates. Inadequate amounts of calci...
Calcium is toxic as an element. It reacts with water and makes a strong base, calcium hydroxide. Calcium compounds are not toxic unless the anion is toxic. Calcium permanganate is only toxic because of the permanganate, not the calcium. Like other alkaline earth metalscalcium burns easily and brightly.
Jun 23, 2021 · Kids aged 4-8 years need 1,000 mg of calcium per day. Kids and teens aged 9-18 years need 1,300 milligrams per day. Why Foods High in Calcium Matter. Lack of dietary calcium is one of the leading nutrient deficiencies in children.
Calcium is the fifth most abundant chemical element in Earth’s crust. It also makes up 2 percent of the human body. In the body calcium helps form bones and teeth and keeps them healthy. It is also present in the blood and in nerve cells.
The body's need for calcium is at its highest point between the ages of 9 years and 18 years old. Not getting enough calcium during this can affect bone strength later in life. Read on for information and tips to help your child get the calcium they need now.
Check out these interesting calcium facts for kids and have fun learning more about the chemical element that helps keep your bones and teeth healthy and strong. Calcium is found in many rocks such as limestone, chalk and marble as well as many dairy products and vegetables.
have coeliac disease. have osteoporosis. are breastfeeding. are past the menopause. Meals and snack ideas. Start the day with cereal (calcium-fortified) with milk or a milk substitute (calcium-fortified). Use tinned sardines or pilchards (with the bones) instead of tuna in a sandwich or on toast.
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