砂 means sand and is a JLPT N2 kanji. It has 9 strokes and uses the stone radical (石).
Stroke order · 9 strokes
On'yomi (音読み)
サ、シャ
Kun'yomi (訓読み)
すな
Radical
石 · stone
Strokes
9
How to remember 砂
Stone (石) worn down smaller and smaller (少) until it becomes sand. 砂糖 (sugar) — 'granulated sweetness like sand,' the image is right there in the name.