Αποτελέσματα Αναζήτησης
A form of oxygen called ozone is a pale blue gas that is explosive and poisonous. It is found in the upper atmosphere, and there it is helpful. It traps harmful rays from the sun and prevents them from reaching Earth’s surface.
- Related Articles
By continuing to use this site, you consent to the terms of...
- Related Articles
18 Οκτ 2024 · Oxygen is the chemical element with the symbol O. It is the third-most common element in the universe , after hydrogen and helium . When alone, two oxygen atoms usually bind to make dioxygen (O 2 ), a colourless gas.
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.
27 Ιουν 2024 · Ready to explore the wonders of oxygen with your kids? With just one simple click, you can download and print these educational resources. Download Now
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.
Enjoy these interesting oxygen facts and learn more about how it relates to the air we breathe, water, the ozone layer and much more. Oxygen plays an essential role in the lives of humans and other living organisms.
Kids learn about the element oxygen and its chemistry including atomic weight, atom, uses, sources, name, and discovery. Plus properties and characteristics of oxygen.
