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If you watch the moon every night, you see its shape appear to change. Does the moon really change shape? How does this work? The answer lies within the part of the moon that receives sunlight, and the part of the moon that does not receive sunlight. Sunlight approaches the Earth-moon system from the right on this diagram Click on the picture to start the program.
Your job is to determine which half of the moon is receives sunlight, and which half of the Earth receives sunlight. The program will tell you when you have them all correct. Sunlight will shine on the side of the Earth or moon that faces the sun. We call this day on the side of the Earth that faces the sun, and night on the side of the Earth that does not face the sun.
Keep in mind that sunlight will illuminate the side of an object that faces it! Click on the arrow in the corner to go to Part 2. OK, so what does this have to do with moon phases? Well, the moon "shines" by reflected sunlight.
As the moon orbits Earth, sunlight "shines" on different parts of the moon on the side of the moon that we can see. We always see the same side of the moon.
Because the moon only spins once per lunar month on its own axis as it orbits the Earth, so we always see the same side.
The key to understanding moon phases is: Click Activity 2 above to go to the next part of the activity. The diagram still shows the shadows that you correctly identified before, but in this diagram, you will need to determine what the moon looks like to humans on Earth. Look at the moon when it is at position a.
It looks like half of the moon is light and half is dark. Find and click the picture that shows what the moon looks like in position a.
If you pick the correct picture and information box will pop up telling you about the phase.
You can close the box and move on to the next phase. Your job is to continue through all the phases, through hto determine if you can figure out which moon phase matches with the position on this diagram.
After you get match the picture for all of the phases, Try answering these questions to see if you really understand the facts about the Earth-moon system. The phases of the moon are produced by:This data service calculates the fraction of the Moon's visible disk illuminated by the Sun for every day in a selected year between and This data service provides times of Sun and Moon rise and set, transit, and the beginning and end of civil twilight, as was as Moon phase information for one day.
Current Moon Phase and Monthly Moon Phase Calendar including Geospecific Moon Rise and Moon Set Times & Moon Sign Calculator. The New Moon on Sunday April 15, at 28° Aries aligns with the planet Uranus. This means the New Moon April astrology is perfect for making changes in your life.
The best time to make a fresh start is a new moon.
NAAP Astronomy Labs - Lunar Phases - Lunar Phase Simulator. Recent Examples on the Web: Noun. Mike Kerns, president of digital at Chernin Group, said the owners decided to appoint a seasoned executive who has run multiple companies to take the firm into its next phase. — Benjamin Mullin, WSJ, "Sports-Betting Analytics Startup Names New CEO," 6 Nov. A year after the movement entered its most public phase, its long-term effects remain uncertain. Explore our collection of new building sets including LEGO Harry Potter and more.
The fixed star aligned with the new moon . Why does the Moon have phases? At the new Moon phase, the Moon is so close to the Sun in the sky that none of the side facing Earth is illuminated (position 1 in illustration).
Why does the Moon have phases? At the new Moon phase, the Moon is so close to the Sun in the sky that none of the side facing Earth is illuminated (position 1 in illustration).