Year 4 have been learning about the water cycle. Enjoy reading our explanations below. 

The water cycle

The sun heats up the water source, turning it into a gas called water vapour. This process is called evaporation. When the water vapour cools down, it condenses, turning it back into water. This process is called condensation. The water falls down as precipitation (it can be hail, snow, sleet and rain) this then travel across the surface as runoff and ends up in the same or a different water source.

By Abdul Haadi.

The water cycle:

The sun heats up the river. The river gets so hot that it turns into water vapour. Then it turns into clouds. Once the cloud can’t hold any more water it starts to rain. The water cools down in the clouds and turns back into a liquid. This is called condensation. When the clouds are heavy the rain comes down. This is called precipitation. Then the water comes down this is called runoff. Then the leftover rain goes back to the river and then it begins again!

By Ayesha

The water cycle:

The sun heats up the river. The river gets hot. The sun warms up water (water vapour) This is called evaporation. The water vapour rises and turns into clouds. The water vapour cools down in the clouds and turns back into a liquid. This is called condensation. When the clouds are heavy, the rain comes down. This is called precipitation. The water comes down onto the land. This is called run off. And then goes back into the river.

By Inaaya.

The water cycle.

The continuous cycle.

Over 75% of the earth is covered in water. The same water has been here since the beginning of creation. Water never leaves the Earth. It moves around in what is called the water cycle. The water cycle starts with the sun heating up the water, this process is called Evaporation which produces water vapour (is the water heated up which turns into a gas). The water vapour/gas, rises and collects in the sky as clouds. The water vapour cools down and turns back into a liquid, this is called condensation.  When it gets too heavy it comes down as precipitation: rain, snow, hail or sleet. This water then moves across land as runoff. And then it ends up in rivers and streams. It then flows back to sea or lakes and the cycle starts again.

By Faiza.

“We observed water in a large surface area and compared the temperature to the rate of evaporation. We found out that the warmer it was (inside) the water evaporated faster. We discussed if the temperature outside was warmer the rate of evaporation outside would be faster. We have decided we will try this experiment again when the weather outside becomes warmer. “(Khubaib, Bisma and Abdullah)