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Review 1

Review 1. How does our solar system, fit into this system?. Our solar system is a subsystem of the galaxy. Our star is just one star in the galaxy. “I can…” Review 2 . In our light investigations, we saw that the shadows got longer in the winter and now they are getting shorter? Explain why.

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Review 1

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  1. Review 1 How does our solar system, fit into this system? Our solar system is a subsystem of the galaxy. Our star is just one star in the galaxy

  2. “I can…” Review 2 • In our light investigations, we saw that the shadows got longer in the winter and now they are getting shorter? Explain why. The sun is higher in the summer and lower in the winter

  3. “I can…” Review 3 • At what position is the Northern Hemisphere in Winter, Fall and Spring? Explain. Winter is position A Spring is position D Fall is position B I can tell because the Northern hemisphere is pointed way from the sun in the winter. D A C B

  4. “I can…” Review 4 • Name the phase of the Moon below. Is it waxing or waning? How do you know? The phase of the moon below is first quarter. I know it is first quarter and the lit side make a lower case “b”. This means it is being born – waxing – and the shape tells mea it is first quarter.

  5. “I can…” Review 5 • Is it true that the reason the moon goes through phases is because the angle the Sun hits it changes? Explain… No, it is not true . The moon goes through phases because as it orbits, we see more or less of the side that is always lit

  6. “I can…” Review 6 • Can an eclipse happen during a crescent moon? Why or why not. • Why don’t we have an eclipse every month? No it can’t because the moon is not directly between the earth and the sun when it is in crescent moon. It has to be a new moon to do that. We don’t have an eclipse every month because the moons orbit is tilted 5 degrees which cause the moon to be too high or too low to have an eclipse

  7. “I can…” Review 7 • What type of eclipse is this? What phase of the moon is it? What part of the shadow are you standing in? This is a partial solar eclipse. It is a new moon and I am standing in the penembra

  8. “I can…” Review 8 • If a solar eclipse happens today, when will the next lunar eclipse be? When will the next solar eclipse be? Explain. A lunar eclipse will happen in two weeks, when the moon is half way through its cycle and in full moon. The next solar eclipse will be in about 6 months, when everything is lined up perfectly again

  9. “I can …” Review 9 How does the sun produce its light and heat? What elements are involved? The energy comes from nuclear fusion where hydrogen atoms smash together to make helium atoms

  10. “I can …” Review 10 What are the blemishes on the surface of the Sun? How are they formed? Is there a pattern to when they appear? What affects can they have on the Earth? Those are sunspots The form when twisted magnetic fields block convection The occur in patterns that occur in 10-12 year cycles They can cause solar flares, which brighten the sun and make the earth warmer The solar flares can send CME which can effect our electricity The particles in a CME can also cause the northern lights.

  11. “I can …” Review 11 What are the protections the Earth has from the dangers from the sun. The earth has three protections Magnetic field: protects us from CMEs The tilt: prevents the sun from concentrating on one place all year The atmosphere: absorbs and reflect harmful rays

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