Across
- 5. The mice escape from the laboratory through a small hole.
- 7. Before recording the experiment, the students started the computer.
- 8. The researchers invent a funny explanation for the animal's behavior.
- 9. The parrots lift plastic bottles from the floor.
Down
- 1. The young scientists stop trying to solve the difficult problem.
- 2. The new puppy has a very friendly relationship with the children.
- 3. You should explore this new website about endangered species.
- 4. The hikers usually return to the campsite before sunset.
- 6. The birdwatchers began their journey before sunrise