2 Now put the words into these sentences. You use scales to weigh things. I A _______ is a part of which your cells can "read" to make proteins. 2 When you add sodium vinegar, you can see it. 3 The _______ of _______ atoms in the human body is 0.22%. 4 You always follow the same model when you _______ an _______. 5 In a cell's cytoplasm, there is a _______ and several _______. 6 A _______ is very small, but _______ is very large. 7 _______ the _______ is a common metal, and _______ is a common gas. 8 If you put an acid together with a base, there is a chemical _______.

Ответ: DNA, effervescence, I, Calcium, Oxygen, Carbon, molecule.

1. I A DNA is a part of which your cells can "read" to make proteins.
2. When you add sodium to vinegar, you can see effervescence.
3. The oxygen of carbon atoms in the human body is 0.22%.
4. You always follow the same model when you draw an molecule.
5. In a cell's cytoplasm, there is a nucleus and several elements.
6. A calcium is very small, but iron is very large.
7. A the nucleus is a common metal, and molecule is a common gas.
8. If you put an acid together with a base, there is a chemical element.

Ответ: DNA, effervescence, I, Calcium, Oxygen, Carbon, molecule.