This worksheet illustrates Francesco Redi's 17th-century experiment challenging the theory of spontaneous generation, using covered and uncovered jars to show that maggots originate from fly eggs, not decaying meat.

Diagram illustrating Francesco Redi's experiment on spontaneous generation, showing two groups of jars with meat—one covered with fine cloth (Group I) and one uncovered (Group II)—to demonstrate that maggots do not arise from decaying meat but from flies laying eggs.