This sink float identify worksheet lets first graders predict whether an apple, rock, duck, and more will sink or float in water. Includes an answer key for a fun, hands-on introduction to density.

This Density and Volume in Metric Worksheet asks 3rd graders to choose the best metric unit—grams, kilograms, milliliters, or liters—for ten everyday objects. Answer key included for fast, no-prep measurement practice.

This Sink Float Examples Worksheet has 3rd graders sort eight everyday objects into Sinks and Floats columns, then name the object in four sentences. Answer key included for hands-on science practice.