A hair clip is a solid. A solid has a size and shape of its own. You can use a hair clip to keep your hair out of your face because the hair clip keeps its shape.
An arrowhead is a solid. A solid has a size and shape of its own. An arrowhead is made of rock.
A screwdriver is a solid. A solid has a size and shape of its own. This screwdriver has a metal blade and a plastic handle. Both metal and plastic are solids.
A rain puddle is a liquid. A liquid takes the shape of any container it is in. If you collect rainwater in a bucket, the rainwater will take the shape of the bucket. But the rainwater will still take up the same amount of space.
Select the liquid.
A: hair clip
B: arrowhead
C: screwdriver
D: rain puddle