Identify the soil types labeled Q, R, and S in the image, which shows a soil sedimentation experiment.

The image shows a soil sedimentation experiment where different soil particles settle into layers based on their size and density.

• Q: This is the top layer, consisting of the finest and lightest particles that settle slowest. This layer is clay.
• R: This is the middle layer, composed of particles larger than clay but smaller than sand. This layer is silt.
• S: This is the bottom layer, made up of the largest and heaviest particles that settle first. This layer is sand.

Therefore, the types of soil labelled Q, R, and S are:

• Q: Clay
• R: Silt
• S: Sand