Why is the Ocean Salty?

Doug discusses why the ocean is salty, unlike lakes and rivers. He explains that while rainwater is fresh, it picks up salt from the ground, which eventually flows into the ocean. Over time, this salt accumulates, making the ocean saltier. The video concludes with a call for viewers to vote on the next topic.

What is a common experience when swimming in the ocean?

• Seeing fish

• Tasting salty water

• Getting a sunburn

• Feeling cold

Why is it not advisable to drink water directly from oceans or lakes?

• It is too cold

• It contains germs

• It is too hot

• It is too fresh

What is the main difference between ocean water and freshwater?

• Freshwater is saltier

• Freshwater is warmer

• Ocean water is salty

• Ocean water is colder

What do scientists first check when studying water on Earth?

• Its temperature

• Its color

• Its depth

• If it is saltwater or freshwater

What did scientists discover about freshwater in lakes and rivers?

• It has a tiny amount of salt

• It is completely salt-free

• It is saltier than ocean water

• It is not drinkable

What is unique about rainwater compared to other water sources?

• It is saltier

• It is completely fresh

• It is colder

• It is warmer

How does rainwater become slightly salty?

• By absorbing salt from the ground

• By evaporating

• By freezing

• By mixing with ocean water

Why is the ocean saltier than rivers and lakes?

• It is deeper

• It has more fish

• It is closer to the sun

• Salt accumulates from rivers over time

What happens to the salt carried by rivers into the ocean?

• It disappears

• It turns into freshwater

• It evaporates

• It stays in the ocean

What can viewers do after watching the video?

• Write a review

• Vote on the next topic

• Share the video

• Submit a question