Answer the following questions. 1. What are the main D. Mendeleev’s contributions to science?

1. What are the main D. Mendeleev’s contributions to science?

2. Where did D. Mendeleev receive the education?

3. How did D. Mendeleev develop the concept of an element?

4. What is L. Pasteur famous for?

5. What is the germ theory?

6. What is the pasteurization? What is it used for?

7. How did L. Pasteur influence the health care?

Find synonyms to the following words and word groups in the text

1.	domain, sphere (para 1)
2.	improvement, development (para 1)
3.	idea, notion (para 1)
4.	invention, revelation (para 3)
5.	considerably, essentially (para 3)
6.	assumption, opinion (para 3)
7.	to acquire, to obtain (para 3)
8.	to eradicate, to remove (para 6)
9.	to improve, to advance (para 7)
10.	ailment, illness (para 7)

Find words corresponding to the definitions below

1.	a homogeneous, molecular mixture of two or more substances (para 1)
2.	to receive a degree or diploma on completing a course of study (para 2)
3.	a university student who has not received a bachelor's degree (para 2)
4.	a dissertation on a particular subject (para 2)
5.	theoretical, rather than practical (para 3)
6.	based on truth (para 3)
7.	a microorganism, especially when disease-producing (para 4)
8.	to become bad, or unfit for use (para 5)
9.	to bring down to a smaller extent, size, amount, number (para 6)
10.	the force per unit area that one region of a gas, liquid, or solid exerts on another (para 6)

Fill in the gaps with the appropriate preposition

according (…) the theory, contribution (…) science, scientific paper (…) chemistry, to be concerned (…) the analysis, to base (…) the concept, (…) the outside, to be the result (…) smth., to apply (…) other products, souring (…) beer, to be used (…) the world, to be known (…) smth.

Complete the table with the appropriate derivatives.

	NOUN	VERB	ADJECTIVE	ADVERB
1.		to apply
2.			harmful
3.	prevention
4.		to develop
5.				sufficiently
6.			infectious
7.		to contribute
8.	validity
9.			specific
10.	definition

Translate the following items into Ukrainian

to work in different fields, a fundamental concept, a contribution to science, The Principles of Chemistry, the elasticity of gas, the understanding of solutions as associations, enter the university, graduate from gymnasium, scientific paper on the chemical analysis, undergraduate thesis, to correspond to the state of chemistry, to gain a characteristic, to occupy a specific place in the periodic system, to change substantially, a book edition, validity of a concept, to remain unchanged, to cause disease, to developed a vaccine to prevent rabies, souring of beer and wine, to cause losses, to apply the idea, to kill harmful bacteria, to bear the name of the inventor