Rise & fall of sea levels
Tides
Igneous rock/29 days
Moon
Huge plains
Maria
Sister planet
Venus
Limited tidal range
Neap
High & low tides
Spring
What causes tides?
Pull of moon
Increase
Waxing
Decrease
Waning
Moon is blocked
Lunar
Earth is blocked
Solar
Moon phases
N,wax cres, h, wax gib, f, wan gib, h, wan cres