| acid |
a chemical substance that dissolves in water, has a sour taste, and turns blue litmus paper red. [1/4 definitions] |
| Ag |
symbol of the chemical element silver. |
| Al |
symbol of the chemical element aluminum. |
| aluminum |
a strong, light, silver metal that does not easily rust. Aluminum is a chemical element. (symbol: Al) |
| arsenic |
a poisonous substance that is one of the chemical elements. It can be either grayish white, yellow, or black. (symbol: As) |
| As |
symbol of the chemical element arsenic. |
| atom |
the smallest possible unit of a chemical element. The major parts of atoms contain protons, neutrons, and electrons. They are the basis of all matter in the universe. [1/2 definitions] |
| Au |
symbol of the chemical element gold. |
| B |
symbol of the chemical element boron. |
| Ba |
symbol of the chemical element barium. |
| barium |
a chemical element. Barium is usually found in compounds with other elements. (symbol: Ba) |
| base1 |
a chemical compound that creates salts and water when mixed with acids. [1/7 definitions] |
| battery |
a device that makes electricity by using chemical reactions. Batteries are used to power many things, including cars, flashlights, toys, and watches. [1/3 definitions] |
| Be |
symbol of the chemical element beryllium. |
| beryllium |
a hard, light, gray substance that is one of the chemical elements. Beryllium is sometimes combined with other elements to form an alloy. It is also used in building rockets. (symbol: Be) |
| bleach |
to make white or lighter in color by using a chemical or sunlight. [1/3 definitions] |
| Br |
symbol of the chemical element bromine. |
| bromine |
a poisonous, dark reddish brown liquid that is one of the chemical elements. It evaporates quickly and combines easily with other elements. (symbol: Br) |
| C2 |
symbol of the chemical element carbon. |
| Ca |
symbol of the chemical element calcium. |
| calcium |
a soft, silver-white substance that is one of the chemical elements. Calcium is found in many kinds of rocks. It is used by the body for building healthy bones and teeth. (symbol: Ca) |