36
Lightning
Textbook: Part 3, pp. 18–20
ЦельFind the description of a natural phenomenon and similes in a poem; know safety rules during a thunderstorm.
Новые слова
lightning · chaqmoqthunder, thunderstorm · momaqaldiroqdownpour · jalalightning flash · yashin
Объяснение
The textbook has the poem “Chaqmoq” (Lightning) by Otash Xolmirzayev, where the poet describes lightning and rain with lively comparisons. We do not retell it. Lightning is a powerful electric spark between clouds or between a cloud and the ground. Light travels faster than sound, so we first see the lightning and later hear the rumble. Every 3 seconds between the flash and the rumble corresponds to about 1 kilometre. In a thunderstorm we stay indoors and do not stand under a tree or near water.
Примеры
“Thunderstorm”. Towards evening black clouds covered the sky. Suddenly lightning flashed as if splitting the sky in two. I counted the seconds: six, then the rumble was heard. So the thunderstorm was about two kilometres away from us. The downpour began with a rustling sound. We went indoors and sat in the middle of the room, not by the window. After the rain a rainbow appeared in the sky.
Calculation: 6 seconds ÷ 3 = 2 km. Safety: stay indoors, do not stand under trees or near water.
Работа в классе
“Counting seconds”: the teacher shows how to count the time between a clap and a table knock; children explain the difference between light and sound.
Упражнения
1
What covered the sky towards evening?
Black clouds
2
How many seconds did the child count?
6
3
About how far away was the thunderstorm?
About 2 kilometres
4
What appeared in the sky after the rain?
A rainbow
5
State three safety rules for a thunderstorm.
Stay indoors; don’t stand under a tree; stay away from water