Science Weather & Climate Conceptual 7–9 yrs

Thunder & Lightning

雷与闪电

Description

Know that thunder and lightning happen during thunderstorms: lightning is a giant spark of electricity that forms in clouds, thunder is the sound the lightning makes, and we see lightning before hearing thunder because light travels faster than sound

Mastery Evidence

✓ Describe lightning as a large electrical discharge in clouds
✓ Explain that thunder is the sound caused by lightning
✓ State that we see lightning before hearing thunder because light travels faster than sound

Assessment Prompt

During a thunderstorm, can your child explain that lightning is electricity in the clouds, thunder is its sound, and that we see the flash before the boom because light is faster than sound?