Across
- 3. Chewing candy canes is this type of digestion
- 5. Which body system helps you breathe cold winter air?
- 8. Which body system helps Santa lift heavy presents?
- 10. Which body system breaks down Christmas cookies for energy?
- 11. Structures that perform mechanical digestion in the mouth
- 12. Organ where chemical digestion happens using acid
- 15. Organ that absorbs nutrients from holiday meals
- 19. Which body system supports the body while decorating a Christmas tree?
- 20. The body’s ability to stay balanced in cold temperatures
- 21. Gas breathed in while playing in cold winter air
- 22. What the body gets from digesting Christmas food
Down
- 1. Which organ beats faster while opening presents?
- 2. Molecules that help chemically break down food after a holiday meal
- 4. Which body system helps fight winter sickness?
- 6. A trait that helps an organism survive winter conditions
- 7. Which organ controls the body during holiday excitement?
- 9. Which body system sends signals to move quickly on Christmas morning?
- 13. Stomach acid breaking down Christmas cookies is this type of digestion
- 14. Which body system pumps blood to keep you warm in winter?
- 16. Which body system protects the body from the cold with skin?
- 17. Humans breeding dogs for certain traits is an example of this type of selection
- 18. Reindeer with thick fur surviving cold winters is an example of this type of selection