Ребята! Давайте попробуем подготовиться к экзамену по английскому языку и узнаем много полезной информации о химических элементах.

Преобразуйте, если необходимо, слова в скобках, так чтобы они грамматически и лексически соответствовали содержанию текста.

1. Lithium ………. (to be) a chemical element, and its symbol is Li.
2. It's an alkali metal, which ……. (to mean) it's very reactive.
3. Lithium is a silvery-white metal that looks ………. (shine).
4. It's the ……... (light) metal and also the lightest solid element on Earth.
5. You can ……. (easy) cut lithium with a knife because it's so soft.
6. Lithium reacts strongly with water, ……… (make) hydrogen gas.
7. Because it's so ……. (react), lithium is usually stored in oil to keep it safe.
8. We use lithium today in rechargeable ……… (battery) for phones and cars.
9. It's also used in some medicines to help people with certain mood conditions.
10. Lithium can be found naturally in small amounts in rocks and ……. ( salt) water.