A material that glows in the dark when it gets light or heat.
The glow-in-the-dark stars on my ceiling are made with phosphor.
私の天井にある暗闇で光る星は、リンを使って作られています。
A chemical element that is important for life and found in many rocks.
Phosphor helps plants grow big and strong.
リンは植物が大きくて強く育つのを助けます。