Atoms, Elements, compounds, and mixtures
What are Atoms? Atoms are the building blocks of all matter. Its in the air, in computers, grass, everything. (You can learn more about atoms in unit 4)
Elements, Compounds, and mixtures are big parts of matter as well.
Elements are found on the periodic table and cannot be broken down into smaller pieces and They are made up of purely atoms. There are 120 elements on the periodic table. he main elements that make up 95% of our body is Carbon, Hydrogen, Phosphorous, Oxygen, Nitrogen, and Calcium. Most of the elements are naturally made but scientist have been successful to make some to add to the periodic table. An elements that can be found naturally is Iron. Iron is in the Earths crust and the same iron can be found on Mars, and in meteoroids.
Compounds are two or more elements chemically combine together. When elements chemically combine they break each other down and make different substances. A perfect example of a compound is water. Water occurs when 1 hydrogen (H0 and 2 oxygen (O2) combined with each other to make H2O.
Mixtures are when two or more elements physically combine together. Physically combined means that when molecules are added together, they don't change, they stay the same because the molecules like each other. When two molecules are mixed together, one of the substances are dissolved in another, to make a new substance with each other.
Elements, Compounds, and mixtures are big parts of matter as well.
Elements are found on the periodic table and cannot be broken down into smaller pieces and They are made up of purely atoms. There are 120 elements on the periodic table. he main elements that make up 95% of our body is Carbon, Hydrogen, Phosphorous, Oxygen, Nitrogen, and Calcium. Most of the elements are naturally made but scientist have been successful to make some to add to the periodic table. An elements that can be found naturally is Iron. Iron is in the Earths crust and the same iron can be found on Mars, and in meteoroids.
Compounds are two or more elements chemically combine together. When elements chemically combine they break each other down and make different substances. A perfect example of a compound is water. Water occurs when 1 hydrogen (H0 and 2 oxygen (O2) combined with each other to make H2O.
Mixtures are when two or more elements physically combine together. Physically combined means that when molecules are added together, they don't change, they stay the same because the molecules like each other. When two molecules are mixed together, one of the substances are dissolved in another, to make a new substance with each other.