Episode 0175
From Muppet Wiki
| Sesame Street | |
| Plot | |
| Air date | January 8, 1971 |
| Season | Season 2 (1970-1971) |
| Sponsors | O, Y, 3 |
| Syndication | |
| DVD | |
- Professor Hastings talks from a dump truck and shows how two trucks can be alike and also different.
- Kermit uses feathers and rocks to teach the difference between heavy and light.
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| Episode 0171 | Episode 0176 |
