1. Powers of Ten

2. Earth
Scale: 108 meters = 100 Mm = 100 megameters

3. North and Central America
Scale: 107 meters = 10 Mm = 10 megameters

4. California
Scale: 106 meters = 1 Mm = 1 megameter

5. The San Francisco Bay Area
Scale: 105 meters = 100 km = 100 kilometers

6. San Francisco
Scale: 104 meters = 10 km = 10 kilometers

7. Golden Gate Park
Scale: 103 meters = 1 km = 1 kilometer

8. Japanese Tea Garden
Scale: 102 meters = 100 meters

9. A Pond with Lily Pads
Scale: 101 meter = 10 meters

10. The One-Meter Square
Scale: 100 meters = 1 meter: Light takes about 3 nanoseconds to cross this picture

11. A Lily and a Bee
Scale: 10-1 meters = 0.1 meter = 10 centimeters

12. A Bee's Head
Scale: 10-2 meters = 1 cm = 1 centimeter

13. A Bee's Eye
Scale: 10-3 meters = 1 mm = 1 millimeter

14. Pollen
Scale: 10-4 meters = 100 µm = 100 micrometers

15. Bacterium
Scale: 10-5 meters = 10 µm = 10 micrometers

16. Virus on a Bacterium
Scale: 10-6 meters = 1 µm = 1 micrometer

17. A Virus
Scale: 10-7 meters = 0.1 µm = 0.1 micrometer = 100 nm = 100 nanometers

18. DNA within a Virus
Scale: 10-8 meters = 10 nm = 10 nanometers

19. The Structure of DNA
Scale: 10-9 meters = 1 nm = 1 nanometer

20. The Structure of water molecule
Scale: 10-9 meters = 1 nm = 1 nanometer

21. The Structure of Oxygen

22. The Structure of carbon dioxide