Joy English · Level B2 · Sciencejoy-english.com

How lightning forms

Name:Date:

Follow a scientific process explained step by step.

Listen to each sentence and write what you hear.

Audio and answer checking: https://joy-english.com/listening-lessons/how-lightning-forms

Words to know

charge
An amount of electricity.
spark
A flash of electricity that jumps across a gap.
expand
To become larger.

Answer key

  1. Inside a storm cloud, ice and water drops crash into each other.“Crash into” links together.
  2. This creates areas of positive and negative electric charge.The stress in “negative” is on “neg”.
  3. When the difference becomes large enough, a huge spark jumps between them.The stress in “between” is on “tween”.
  4. That spark heats the air so quickly that it expands with a loud bang.“So quickly that” shows a result.
  5. Because light travels faster than sound, we see the flash before we hear the thunder.“Thunder” starts with an unvoiced th.