自然科学启蒙 / Let's-Read-and-Find-Out Science - 4: 你四周都是空气
- 33 Seiten
- 2 Lesestunden
Introduces the concept of air, its presence in our world, and its importance to the environment.
霍利·凯勒 Bücher
自然科普启蒙 - 7: 捕猎能手—蛇
- 32 Seiten
- 2 Lesestunden
Young reptile fans will be fascinated with the explanation of how snakes find and kill their prey. Poisonous snake enthusiasts will be delighted with two pages about rattlesnakes in this simple and readable explanation of an inherently interesting subject.