What are semidiurnal tides?

Semidiurnal tides are when the water goes up and down twice every day, like a fun game that happens morning and night.

Imagine you're playing with a seesaw in the park. When one friend sits on one end, it goes down, and the other side goes up. Now imagine the whole ocean is like that seesaw, but instead of friends, it's the moon and sometimes the sun pushing and pulling the water.

• The moon’s pull makes the water rise (high tide) and fall (low tide). This happens about every 12 hours and 25 minutes.
• Sometimes, the sun also helps, making the tides even bigger, like when you have a friend and a big brother pushing on the seesaw at the same time.

So, if you live near the ocean, you might see two high tides and two low tides in one day, just like playing with your friends twice a day! Semidiurnal tides are when the water goes up and down twice every day, like a fun game that happens morning and night.

Imagine you're playing with a seesaw in the park. When one friend sits on one end, it goes down, and the other side goes up. Now imagine the whole ocean is like that seesaw, but instead of friends, it's the moon and sometimes the sun pushing and pulling the water.