Discusses the many scientific facts and theories that can be investigated on a vacant city lot by observing, collecting, and performing simple experiments.
- ISBN10 0670621633
- ISBN13 9780670621637
- Publish Date 30 March 1970
- Publish Status Out of Print
- Out of Print 21 December 2022
- Publish Country US
- Publisher Penguin Books Australia
- Imprint Viking Children's Books
- Format Hardcover
- Pages 64
- Language English