Thunder

Thunder is a weather phenomenon where electricity inside clouds makes light and sound, and young children understand that when they hear it, they should go to a safe place.

2026年7月10日 · こども図鑑
2026年7月10日 · こども図鑑
Thunder can make the sky flash brightly.
After that, you may hear a rumbling sound.
Thunder can happen on days when there are rain clouds.

💬 What Is Thunder?

Thunder can make the sky flash brightly. After that, you may hear a rumbling sound. Thunder can happen on days when there are rain clouds.

🤔 What kind of sound does thunder sound like to you?

Electricity can build up inside rain clouds.
When that electricity moves, it flashes brightly.
This light is lightning.

💬 Thunder Is Electricity in Clouds

Electricity can build up inside rain clouds. When that electricity moves, it flashes brightly. This light is lightning.

With thunder, you may first see a bright flash.
After that, you may hear a rumbling sound.
If the sound is loud and surprises you, it is okay to cover your ears.

💬 There Is Light and Sound

With thunder, you may first see a bright flash. After that, you may hear a rumbling sound. If the sound is loud and surprises you, it is okay to cover your ears.

🤔 Which do you notice first: the bright flash or the rumbling sound?

When thunder rumbles, stop playing outside.
It feels safe to go inside a house or building.
Try not to go under trees or near water.

💬 When You Hear Thunder, Go to a Safe Place

When thunder rumbles, stop playing outside. It feels safe to go inside a house or building. Try not to go under trees or near water.

🤔 When thunder rumbles, where can you go to feel safe?