Across
- 1. Cold-blooded animal that relies on environmental heat to regulate body temperature.
- 4. Zigzag path used to make steep climbs easier.
- 6. Energy system used for short, high-intensity bursts without oxygen.
- 9. Remote, undeveloped natural area.
- 12. Mammal group that includes rabbits, known for continuously growing teeth.
- 15. Closed loop that allows electricity to flow.
- 16. Rabbit named for its fluffy white tail.
- 18. Device that limits current flow in a circuit.
- 19. The distance covered in one step while running.
Down
- 2. Chemicals released during exercise that can create a “runner’s high.”
- 3. Young tree still in its early stages of growth.
- 5. Network of underground tunnels where rabbits live.
- 7. The sound male frogs make to attract mates (and defend territory).
- 8. Tissue that transports water from roots to leaves.
- 10. Component that stores electrical energy in an electric field.
- 11. Unit of electrical resistance; named after a German physicist.
- 13. Unit of power equal to one joule per second.
- 14. Starting point of a hiking trail.
- 17. Small, natural stream of fresh water.
- 20. Long, challenging hike often over multiple days.