Assess students' ability to make simple predictions, carry out a guided hands-on test, and explain results when common classroom objects (e.g., blocks, crayons, coins, paper clips, sponges) are placed in water. The quiz evaluates applying the scientific process: formulating a prediction (sink or float), safely performing the experiment, recording observations with drawings or checklists, comparing outcomes to predictions, and giving age-appropriate explanations that reference basic object properties (material, size, shape). Includes teacher-led setup and assessment criteria for Pre-K–Grade 2.