Cambridge Primary (1-6). Stage 3. Science. Workbook - Unit 2: Mixing materials - Question 18

Zara has drawn two diagrams to show how she separated a mixture of sand and rocks. Look at Zara’s diagrams. She has made some mistakes. She has not labelled all the equipment and all the materials in each diagram. Some of her diagram is not neat.

What mistake has she made in diagram 1?