七色光课Seven-color light
彩虹怎么来How Rainbows Form
阳光进小水滴，弯一弯就变彩虹。Sunlight enters drops, bends, and becomes a rainbow.
第 1 站Stop 1
科学卡片Science Cards
点一下卡片翻过来。Pad 上点按就能翻。Tap a card to flip — tap works on Pad too.
第 2 站Stop 2
彩虹排队Rainbow lineup
按红到紫的顺序点。Tap red-to-violet order.
第 3 站Stop 3
需要 / 不需要Needs / doesn’t
形成彩虹通常需要什么？What does a rainbow usually need?
✅ 需要Needs
❌ 不需要No
第 4 站Stop 4
颜色记忆Color memory
翻开配对。Flip matches.