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Properties. In its free state, oxygen is a gas without color, odor, or taste. It turns into a pale blue liquid at temperatures below –297° F (–183° C) and becomes solid at about –360° F (–218° C). Oxygen combines easily with many other elements to form substances called compounds.
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Kids learn about the element oxygen and its chemistry including atomic weight, atom, uses, sources, name, and discovery. Plus properties and characteristics of oxygen.
Oxygen constitutes about two-thirds of the human body and nine-tenths (by weight) of the water in rivers, lakes, and oceans. In combination with other chemical elements, it forms hundreds of thousands of compounds, making up by weight almost half of the rock and sand in Earth’s crust.
Kid's learn about the science of human breathing and the lungs. How we get oxygen into our blood and remove carbon dioxide through the Respiratory System.
22 Oxygen Facts for Kids. Oxygen is a chemical element on the periodic table. Oxygen was discovered in 1771, by Swedish pharmacist Carl Wilhelm Scheele. Oxygen was given its name in 1777, by French chemist Antoine Lavoisier. Oxygen is a gas at room temperature.
The respiratory system is the body’s way of breathing in oxygen and breathing out carbon dioxide. Insects breathe through holes in the sides of their bodies. Fish and young amphibians have organs called gills to take in oxygen from water.
Take a big deep breath…ahhh…Oxygen. This colorless, odorless, and tasteless element is vital to all living things; even undersea creatures need oxygen. But did you know, Oxygen only makes up 21 percent of Earth’s atmosphere? Or that our planet has had oxygen on it for the last 2.4 billion years?
