![]() A neutron star can spin 600 times in one second.ġ2. The footprints on the moon will be there for 100 million years.ġ1. It takes eight minutes and 19 seconds for light to travel from the sun to Earth.ġ0. Ham the Astrochimp was the first hominid in space, launched on Jan. Even in an airplane, a trip to Pluto would take about 800 years.ħ. One million Earths could fit inside the sun!Ħ. Sally Ride was the first American woman to fly in space on June 18, 1983.ĥ. One teaspoon of a neutron star would weigh six-billion tons.Ĥ. The moon is very hot (224 degrees Fahrenheit, average) during the day but very cold (-243 degrees average) at night.Ģ. The green colour of the aurora borealis, or northern lights, is caused by solar wind particles colliding with oxygen atoms in the earth’s atmosphere.1.300 million years ago when oxygen levels were higher, insects grew bigger.This causes tiny bubbles in the blood which can be painful and sometimes deadly. Too much oxygen is however bad for us and causes a condition called the bends which is a particular problem for astronauts and scuba divers.Tanks of oxygen are also used to treat those with breathing problems and as life support for astronauts and scuba divers. It is also used for smelting metal from ore, to filter water, for making plastic, and creating rocket fuel. It is most commonly used in the manufacture of steel. The name oxygen was first used by French chemist Antoine Laurent Lavoisier in 1777 and comes from the Greek word oxygenes which means acid producer.However, he didn’t publish his results right away until after British chemist Joseph Priestley published his discovery of oxygen in 1774. Oxygen was discovered in 1771 by Swedish pharmacist Carl Wilhelm Scheele.It protects the Earth from the sun’s harmful rays by filtering UV light. Ozone O3 forms the ozone layer in the Earth’s upper atmosphere. ![]() Ozone O3 is a different form of oxygen that combines three oxygen atoms together to create trioxygen. Oxygen also exists as the allotrope, ozone.Most oxygen on Earth comes from tiny ocean plants called phytoplankton. Oxygen found in the air is produced by photosynthesis - without plants there would be little oxygen in the air.This role is carried out through the oxygen cycle which is the movement of oxygen between air, living things, and the Earth’s crust. ![]()
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