Why is the ocean salty

Front

To head out

Back

To start going in a particular direction

Example: The river heads out to the ocean.

Front

To get carried over

Back

To be transported from one place to another

Example: Minerals get carried over by rivers into the ocean.

Front

Rain down

Back

To fall from the sky like rain

Example: Freshwater rains down from the clouds.

Front

Slightly

Back

A little bit; not too much

Example: Ocean water gets slightly saltier over time.

Front

Splash into

Back

To fall into water and make it move suddenly

Example: Raindrops splash into rivers and lakes.

Front

Feast

Back

A big meal with a lot of food

Example: Some sea animals enjoy a feast of tiny creatures in the water.

Front

Leftovers

Back

Food or material that remains after a meal or process

Example: The leftovers of tiny creatures add minerals to the ocean.

Front

Average

Back

A number that represents the middle value of different amounts

Example: The average saltiness of the ocean is 3.5%.