🔍 Key Concepts

• tide height vs. tidal current – one is vertical movement of the sea surface, the other is horizontal flow of water • the meaning of slack water in current tables • how tide tables describe the period just before and after high or low water

💭 Think About

• Ask yourself: does 'stand' refer to how FAST the water is moving horizontally, or how FAST the water level is changing vertically? • Look at each choice and decide: is it describing a current (horizontal flow) or a height (vertical level) condition? • Think about what happens to the change in water level right at the moment of high or low tide – is it still rising/falling, or does it pause briefly?

✅ Before You Answer

• Be clear on the difference between tidal current (horizontal) and tide height (vertical). • Check which option talks about slack water and whether slack water always occurs at high or low tide in real-world navigation. • Verify which choice best describes the brief period when the change in water level nearly stops before reversing direction.