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The Earth, Sun and
The Earth, Sun and the Moon
Question | Answer |
---|---|
How long does it take for the earth to orbit around the sun | It takes 365.25 days for the Earth to make one full revolution around the Sun |
How often does the earth revolve around its axis | The Earth revolves around its own axis every 24 hours |
How long does it take the moon to orbit the earth | It takes 27.3 days for the moon to make one full revolution around the Earth |
How often does the earth rotate around its own axis | The Earth rotates around its own axis every 24 hours |
At what angle is the earth rotated on its axis | the axis of the Earth being tilted at 23.5° |
what causes seasons | Seasons are caused by the axis of the Earth being tilted at 23.5° |
When does a Lunar Eclipse happen | Happens when the Earth comes between the Sun and Moon |
When does a Solar Eclipse Happen | Happens when the Moon comes between the Sun and the Earth |
Name some benefits of space exploration | Insulating materials Memory foam Nike Air |
Name some hazards of space exploration | Explosion,Launching rockets is like a controlled explosion, accidents have happened Lack of gravity can cause muscle and bone weakness over time. Cosmic radiation (from the sun and other sources) It damages DNA, causing cancer and other diseases |
What is one of the main aims for space exploration in the future | Next big step - Mars Mars is of interest to us as it has all the elements that we need to survive as well as a source of water However there is ethical concerns around the safety of the astronauts during missions |