Marshmallow is a solid because it has a definite shape and volume. The particles in a solid are closely packed together and vibrate in place, which is why solids keep their shape.Drawing Guide:When drawing the particles of a solid like marshmallow, make small circles (representing particles) arranged closely and neatly in a fixed pattern or grid. They should almost touch each other and not move around.You can label it:"Marshmallow – Solid"and write below:"Particles are tightly packed and only vibrate in place."