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The research of water scheduled for fourth grade students
The research of water scheduled for fourth grade students should contain the following:
Cases of water in nature. The importance of water for economic activities.
Calculate the number of water bottles your family members consume per day, then estimate that for an entire month in one of the summer months and one of the winter months.
Writing several tips for your colleagues to rationalize water consumption in Arabic and a foreign language.
Research: Cases of water in nature.
Definition of water: It is the only substance that is found naturally in its three states (the phases of matter) in the form of solid, liquid and gaseous surfaces on the surface of the Earth
Water cases in nature are divided into:
In nature, water exists in three physical states:
Sea water, rivers, lakes, and underground water (groundwater).
Like the snow and ice surfaces that we see especially in the Arctic and Antarctic and the highest mountains.
The water is in the gaseous state, i.e. water vapor in the atmosphere.
Water is distributed in nature to: Surface water:
This water is represented by rivers, seas, oceans and ice blocks:
It is the purest type of natural water, where some of the gases dispersed in the atmosphere, such as oxygen, carbon dioxide, and some solid substances suspended in the atmosphere, are dissolved in it.
River water consists mainly of rain, and this water contains many solid materials dissolved in it due to its passage and flow through various types of soils.