Series
| Series Name | Release Date | Product Count |
|---|---|---|
| Ready, Set, Grow: Plants | 2025-01-01 | 13 |
| Record-Breaking Animals | 2024-08-01 | 7 |
| Regions of the United States | 2022-08-01 | 7 |
| Reptiles | 2015-08-01 | 5 |
| Reptile World | 2015-08-01 | 15 |
| Rescued! Animal Escapes | 2021-01-01 | 7 |
| Rescuing Animals from Disasters | 2011-08-01 | 8 |
| Responsible Citizenship | 2021-08-01 | 8 |
| River Adventures | 2024-08-01 | 7 |
| River Monsters | 2024-01-01 | 7 |
| Robot World | 2015-08-01 | 6 |
| Rockin' Earth! | 2024-08-01 | 7 |
| Rock-ology: The Hard Facts About Rocks | 2014-08-01 | 9 |
| Rocks & Minerals | 2019-07-01 | 7 |
| Saddle Up! | 2020-08-01 | 11 |
| Safari Babies | 2019-01-01 | 8 |
| Safe by Design | 2019-07-01 | 6 |
| Saving Animals from the Brink | 2021-08-01 | 7 |
| Saving the World | 2023-01-01 | 5 |
| Scary Places | 2015-07-01 | 35 |
| Scary States (of Mind) | 2019-07-22 | 23 |
| Scary Stories | 2024-08-01 | 7 |
| Science Behind the Colors | 2020-08-01 | 7 |
| Science Questions | 2023-01-01 | 8 |