Why do tidal heights change?
The height of the high tide changes over the course of the month. It is highest at new moon and full moon and lowest at first and third quarters. Introduction The sun also pulls up tides, these add to the moon tides and create a pattern of tides which range from high, spring tides, to low, neap tides, twice each month. Since the phases of the moon also depend on the position of the moon and the sun, the tidal pattern follows the phases of the moon. Assembly Cut out the solar tide model below. Push a pin through the earth globe, which will be on top, The solar tide model in the middle, and on the bottom the lunar tide model which includes the moon, into some cardboard. Optional: If you have access to a transparency maker, make a transparency of the lunar tide model. Glue the solar tide model to some heavy cardboard, Push a thumbtack through the center of the earth model then through the center of the earth in the transparency of the lunar tide and finally into the center of the solar ti
