Cambridge Primary (1-6). Stage 3. Science. Workbook - Unit 4: Staying alive - Question 21

Fossils are made when a living thing is quickly buried in mud or clay. More mud and rock buries the living thing deeper. Slowly the mud turns to rock. The fish is buried for many, many years. The soft parts disappear but the hard parts make an impression. In the left box, draw layers of rock and clay burying this dead fish.