Aiden completed a breathing exercise to disengage the fight-or-flight response and engage the rest-and-digest response to feel calm: breathe in for 8 seconds, hold for 8 seconds, exhale 8 percussive sniffs. Repeat 20 times. He completed a solar plexus meditation repeating the mantra "I burn away my cravings. I burn away desires. I burn away my mental fixations" for 5 minutes. He completed the Investigation "Seafloor Spreading" and viewed the video "Seafloor Spreading". He wrote a summary of what causes earth's crust to spread. He read about the seafloor conveyor belt, magma and lava. He wrote about the relationship between seafloor spreading, mid-ocean ridges and ocean trenches. He completed the conversion from km to cm using conversion factors.