🧠 Part 1: Homeostasis and Energy

1. When does your body temperature rise the most during a soccer match?

First 15 minutes

Middle 30-60 minutes

Final 15 minutes

Temperature stays constant

2. Which body systems help you cool down? (Check all that apply)

Circulatory system (blood flow)

Respiratory system (breathing)

Integumentary system (skin/sweating)

Nervous system (temperature control)

3. Your muscles need energy (ATP) during intense exercise. Complete the equation:

_____________ + O₂ → _____________ + CO₂ + H₂O

4. When oxygen runs low during intense play, your muscles switch to anaerobic respiration. What builds up and causes fatigue?

5. Why is ATP called the "energy currency" of cells?

🔬 Part 2: Cause and Effect Analysis

6. Complete the cause and effect relationship you observed during exercise:

Cause: ________________________________________________

Effect: ________________________________________________

7. At what point might homeostasis start to fail during a match? Explain your reasoning.

8. Extension: How might a coach help players maintain homeostasis during a hot game?

9. Check off what you can now explain:

I can explain how my body maintains temperature during exercise

I can describe the role of ATP in muscle function

I can compare aerobic and anaerobic respiration

I can identify when homeostasis might fail during exercise

10. Reflection: What surprised you most about how your body responds to exercise?