Water in the air gets cold and changes back into liquid, forming clouds. This is called
is when the sun heats up water in rivers or lakes or the ocean and turns it into vapor or steam.
occurs when so much water has condensed that the air cannot hold it anymore.
The water cycle has principal stages.
The water cycle purifies the .
CHOOSE ONE OF THE FOLLOWING WORDS TO COMPLETE THE EXPRESSIONS.
DRANK _ WATER CYCLE _ DINOSAURS
Because of the , sometimes we drink water from the oceans.
drank the water that we are drinking today.
Dinosaurs the water we are drinking today.
1./ People have to drink dirty
clean( dirty, salty, clean ) water.
2,/ Animals and plants need water to survive.