Science- Water

On Monday 18th November, our classroom had started to learn about Water Pressure. Water Pressure is about the weight of the water . The water pressure is pushing you down because you body cannot react to the sudden change. It is the same with resistance. Resistance is when you are swimming towards a direction and when you swim to the opposite direction, the resistance pulls you back. Resistance also works with air. Our classroom went swimming on the peticular day and learnt so much. We also learnt what Nitrogen and a Hyperbaric Chamber is. Here is our answers:

What is Nitrogen?
The Chemical element of Atomic number 7, a colourless, odourless, unreactive gas that forms about 78% of the earth's atmosphere.

How does Nitrogen effect your body?
The air you breathe is around 78% nitrogen, so nitrogen enters the body with every breath. Since nitrogen is an important part of human health, it is unfortunate that the nitrogen we inhale get's immediately exhaled. Animals (includeing humans) cannot absorb nitrogen in it's gaseous form.

What is a Hyperbaric Chamber?
hyperbaric chamber, also called decompression chamber or recompression chamber,  sealed chamber in which a high-pressure environment is used primarily to treat decompression sickness, gas embolism,carbon monoxide poisoning, gas gangrene resulting from infection by anaerobic bacteria, tissue injury arising from radiation therapy for cancer (see cancer: Radiation therapy), and wounds that are difficult to heal.