Product Description
Video and lesson investigations on the topic of water level and gravity. Key concepts include:
- Water levels on both sides of an open tube are always the same.
- The surface of water in different parts of the same container is kept level by the effect of air pressure acting on it, provided the water is open to the air and can move freely between the different parts of the container.
- This is because the movement of water over the Earth’s surface is guided by gravity.
- Water is pulled towards the centre of the Earth.
- The level quality of settled water is due to this pulling force.
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