Fig. 28 Shapes of volcanoes

Date: 2015-10-07; view: 601.

TASK 1

DISCUSSION

A. a teacher and a student

A. silicate and a metal

A. silicon and oxygen and aluminum

A. melting, cooling and solidifying

B. cooling, melting and solidifying

C. rising, melting and cooling

D. melting, rising and cooling

5. What are silicates?

B. silicon and oxygen and a metal

C. silicon and oxygen and silicate

D. silicon and oxygen and mafiс mineral

6. What does quartz consist of?

B. silicate without a metal

C. silicate without oxygen

D. silicon and oxygen

7. What are the two people?

B. geologists

C. a guide and a visitor

D. husband and wife

Image a volcano and describe the development of it. You can use examples of different volcano eruptions (for example, St. Helen).

TASK 2

Here are 6 shapes of volcanoes: (R.P .-5.2)

1. loose-packed volcano

2. stratovolcano

3. caldera

4. rift volcano

5. spring hilltop

6. shield volcano

Describe one of them.