Science facts

• Water can boil and freeze at the same time
• it's called the `triple point`, and it occurs when the temperature and pressure is just right for the three phases of a substance to coexist in thermodynamic equilibrium.
• When Helium is cooled to almost absolute zero (-460°F or -273°C), the lowest temperature possible, it becomes a liquid with surprising properties: it flows against gravity and will start running up and over the lip of a glass container.
• 20% of Earth’s oxygen is produced by the Amazon rainforest
• Our atmosphere is made up of roughly 78 per cent nitrogen and 21 per cent oxygen, with various other gases present in small amounts. The vast majority of living organisms on Earth need oxygen to survive, converting it into carbon dioxide as they breathe. Thankfully, plants continually replenish our planet’s oxygen levels through photosynthesis. During this process, carbon dioxide and water are converted into energy, releasing oxygen as a by-product. Covering 5.5 million square kilometres (2.1 million square miles), the Amazon rainforest cycles a significant proportion of the Earth’s oxygen, absorbing large quantities of carbon dioxide at the same time.
• The Earth spins at 1,000 mph but it travels through space at an incredible 67,000 mph.
• At over 2000 kilometres long The Great Barrier Reef is the largest living structure on Earth.
• If you drilled a tunnel straight through the Earth and jumped in, it would take you exactly 42 minutes and 12 seconds to get to the other side.

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