Season 21
Artwork
No image
| # | Image | Title | Aired |
|---|---|---|---|
| 1 |  | How Food Works (Part 1) | Apr 14, 2020 |
| 2 |  | How Food Works (Part 2) | Apr 21, 2020 |
| 3 |  | Teeth Clinic | Apr 28, 2020 |
| 4 |  | Asteroid Hunters | May 5, 2020 |
| 5 |  | Building Greener Cities | May 12, 2020 |
| # | Image | Title | Aired |
|---|---|---|---|
| 1 | | How Food Works (Part 1) | Apr 14, 2020 |
| 2 | | How Food Works (Part 2) | Apr 21, 2020 |
| 3 | | Teeth Clinic | Apr 28, 2020 |
| 4 | | Asteroid Hunters | May 5, 2020 |
| 5 | | Building Greener Cities | May 12, 2020 |