1. The theme: What is science? Speaking: Current events. Grammar: Doing gr exer-s Branches of science

1. The theme: What is science?
2. Speaking: Current events.
3. Grammar: Doing gr exer-s
Branches of science
Bobur: Today we had first science class. It was fun. Our science teacher is very nice. She is a good scientist.
Shoira: I like science too! my favourite science is biology. I love to study living things; plants and animals. I am going to be a biologist.
Sarvar: I like studying physics. It is very interesting to study how things happen. I’m going to be a physicist.
Mother: What about chemistry? Doesn’t anyone like chemistry? You know, I teach chemistry. It is very interesting to study what things are made of.
Shoira: I like chemistry. But I don’t want to be a chemist. I am afraid of the experiments. I feel that something is going to blow-up.
Father: experiments are very useful. You can learn many things by experimenting. If you are very careful and follow the rules, nothing will blow-up.
Bobur: Our teacher told us that, the three methods of science are observation, experiment and measurement. And she spoke about the four branches of science.
Father: Yes, the four main branches of science are biology, physics, chemistry and mathematics. Mathematics is the study of numerals and their relation. Without it, how would you be able to make measurements?
Mother: And the scientist who works in mathematics is a mathematician.
Bobur: Aren’t there other sciences?
Father: Yes, there are many sciences. But each is a branch of these four. They all use the rules of the four main sciences.
Bobur: for example engineering is also a science. You are a science too. aren’t you father?
Father: Yes, in a way. Engineering is a science. But, it is also a technology. Scientists find the rules of science. Technology uses it to make things. For example, scientists found rules for using steam power. Engineers made the steam engine and the train. Science and technology work together.


Ex. 1: read the questions, each question concerns one main branch of science. Write down which branch of science can answer each question.

1. 
   What is the length of this table?
   
2. 
   How does a bird grow?
   
3. 
   What are the parts of a flower?
   
4. 
   What is an atom?
   
5. 
   How does the telephone work?
   
6. 
   Why do we see the lightning before we hear the thunder?
   
7. 
   What is air made of?
   
8. 
   How many kinds of fish are there?
   
9. 
   How do I calculate the area of this room?
   
10. 
    What is the average age in this group?
    

Different sciences
Astronomy is concerned with space, stars and planets. An astronomer studies space, stars and planets.
Geology is concerned with the earth, its crust and rocks. A geologist studies the earth, its crust and rocks.
Meteorology is concerned with the weather and the changes in the atmosphere. A meteorologist studies the weather and the changes in the atmosphere.
Paleontology is concerned with fossils. A paleontologist studies fossils.
Botany is concerned with plants. A botanist studies plants.
Zoology is concerned with animals. A zoologist studies animals.


Ex 2. Let’s do an experiment
For this experiment you need some sand, water and 2 graduated-cylinders (100 ml)

1. 
   Measure 50 ml sand, with one of the graduated-cylinders.
   
2. 
   Measure 50 ml water with the other graduated-cylinder.
   
3. 
   Pour water over sand.
   
4. 
   What is the final volume? Why is it not 50+50 =100 ml?
   

Ex. 3: Complete the sentences using the possessive pronouns

Ex. 4: Choose the right word


Homework: Speak about science