Cold currents flow from poles to tropics.

Meaning: This sentence describes the movement of cold ocean currents from the colder regions near the poles to the hotter regions near the equator.

Choice of Words: Cold means having a low temperature, opposite of warm. Flow is a verb that means to move smoothly and continuously, often in a stream or river. Tropics are the regions of the Earth near the equator, which are hot and humid.

Alternative Expressions

Cold water travels from the ends of the Earth to the middle.

Meaning: This sentence is about how cold water moves in the ocean. It says that cold water moves from the top and bottom of the Earth (the ends) to the areas near the equator (the middle).

Choice of Words: Cold means having a low temperature, like ice cream or a winter day. Water is the liquid that we drink and that makes up most of the oceans. Travels means to move from one place to another. Ends are the points where something stops or finishes, like the ends of a rope. Earth is the planet that we live on. Middle is the point that is halfway between two other points, like the middle of a room.

Freezing water flows from the chilly tops and bottoms of the world to the warmer center.

Meaning: This sentence is about how cold water moves in the ocean. It says that very cold water moves from the top and bottom of the Earth (the chilly tops and bottoms) to the areas near the equator (the warmer center).

Choice of Words: Freezing means very cold, like ice or a freezer. Water is the liquid that we drink and that makes up most of the oceans. Flows means to move like water or air. Chilly means slightly cold, like a winter breeze. Tops are the highest points of something, like the top of a mountain. Bottoms are the lowest points of something, like the bottom of a pool. World is another word for Earth. Center is the point that is halfway between two other points, like the center of a room. Warmer means not as cold, like a spring day.

Related Expressions