Lesson three Oral topic: in the chemical laboratory Grammar

Exercise 4. Prove that:

1. 
   A well equipped laboratory is the base of every successful experiment.
   
2. 
   Lab accessories are not less important than basic ones.
   
3. 
   The work in the chemical lab requires cleanliness.
   

Exercise 5. Ask your group-mates questions concerning:

• 
  the organization of a chemistry laboratory;
  
• 
  the equipment of a laboratory;
  
• 
  the instruments and tools;
  
• 
  the laboratory glassware;
  
• 
  the rules of the work in the laboratory.
  

Exercise 6. Get ready to speak on the topic “In the chemistry laboratory” using ex.5 as an outline.