ED 3601 Minilesson Plan MiniLesson Plan Lesson: Solar Eclipse with a Coin Grade: Science 6: Sky Science Name: Amber MacLean Date: February 7, 2006 Time: 20 minutes GLOs: Students will: Design and carry out an investigation in which variable are identified and controlled, and that provides fair test of the question being investigated Demonstrate positive attitudes for the study of science and for the application of science in responsible ways Observe, describe and interpret the movement of objects in the sky; and identify pattern and order in these movements SLOs: Students will: communicate effectively with group members in sharing and evaluating ideas, and assessing progress identify possible applications of what was learned show critical-mindedness in examining evidence and determining what the evidence means a willingness to use evidence as the basis for their conclusions and actions recognize that the Sun and stars emit the light by which they are seen and that most other bodies in space, including Earth’s moon, planets and their moons, comets, and asteroids, are seen by reflected light recognize that the apparent movement of objects in the night sky is regular and predictable, and explain how this apparent movement is related to Earth’s rotation Lesson Objectives: 1. make predictions about the outcomes of a solar eclipse simulation 2. carry out procedures in simulating a solar eclipse 3. demonstrate cooperation in discussing their findings and interpretations with group members 4. recognize the similarities between the an actual solar eclipse and the simulation 5. recall that light is emitted only by the sun and stars and reflected by other parts of the solar system (ie. the moon) Materials: coins (6) worksheets computer/internet connection video clip ED 3601 Minilesson Plan Time: 4 min Introduction: Quick review: *We have been looking at the lunar cycle and how the moon rotates around the earth. One rotation takes about 29 days. The earth is tilted on its axis so the moon does not travel along the Earth’s equator when it circles around. *The moon does not give off light, it reflects the light that the sun gives off and that is what makes the moon visible to us on Earth. *An eclipse is when one part of our solar system blocks out the light or reflection of another. There can be different types -solar and lunar, total or partial *Today we are going to focus on the solar eclipse. A solar eclipse happens when the moon blocks the light of the sun. When the sun, our moon and Earth all line up in a perfect line the moon is able to block the light of the earth. *This does not happen during every lunar cycle due to the Earth’s tilt, which causes the moon to not orbit around the equator. Time: 13 min Body: 1. Solar Eclipse Simulation: Explain the activity- Going to simulate an eclipse today with coins *The coin is going to represent the moon in our simulation of a solar eclipse *The sun is going to be represented by the distant object 1. Record your predictions on your worksheet 2. Close one eye and look at an object in the distance that is much bigger than the coin. 3. Hold the coin at an arms length in front of your open eye and look at the object. 4. Bring the coin closer to your open eye until it is directly in front of your eye. 5. Answer the questions on your worksheet as you work through the simulation 6. Hand out worksheets and coins as we explaining what we are doing today-transition Questions: 1. What did your coin represent in the simulation? 2. What happened to the object in the distance as you brought the coin closer to your eye? Explanation: 1. The coin is smaller than the object, just as the moon is small than the Sun, but they both are able to block out light when they pass close to the observer. 2. When the moon passes between the Sun and the Earth, it blocks out light just like the coin blocked your view of the object. This is called a solar eclipse. 3. The Moon moves around the Earth about once every 29 days, but a solar eclipse does not occur every time. A solar eclipse can only happen when the moon is lined up perfectly to cast its shadow over the earth 11 min ED 3601 2 min Minilesson Plan and block the sun light. 4. The Moon does not orbit around the Earth's equator, and the Earth's axis is tilted, so the Moon's shadow misses the surface of the Earth most of the time. Which is why a solar eclipse does not occur during every lunar cycle. 2. Solar Eclipse Video Clip: √ We are going to see a short video clip of a solar eclipse. They are beautiful and spectacular and do not occur very often. Some people travel long distances to watch the spectacle. Watch for how the real eclipse is the same and different as the coin simulation. √ Show video clip Closure: • Question: Was our simulation a fair representation of what happens during a solar eclipse? • Any other ideas of how to represent an eclipse using the same materials provided? *Solar eclipses are a beautiful sight *Do not occur very often, although partial eclipses occur more often than total *There are different types of eclipses and next we will look at the lunar eclipse Assessment: 1. Objectives 1, 4, 5: Student responses on work sheet, and oral responses during class discussion. 2. Objectives 2, 3: Observation of student skills and responses during simulation activity. References: Edscope, L.L.C. (2006). Solar System Learning Activities. Retrieved February 3, 2006, from http://www.lessonplanspage.com/more/205la.html Gurman, J.B. (2006). Solar Eclipse Information. Retrieved February 3, 2006, from http://umbra.nascom.nasa.gov/eclipse/images/Freds_dundlod_movie_v.mov Ingram, J., Herridge, D. & Moore, N. (1993). Explore! A Book of Science: Student Resource Book 6. Don Mills: Addison-Wesley Publishers Limited. Time: 3 min ED 3601 Minilesson Plan Solar Eclipses Name: ________________________ 1. What do you think is going to happen in the simulation? State your predictions. __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ 2. What do you notice happens to the distant object as you bring the coin towards your eye? __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ 3. How about trying the same experiment, but when bringing the coin towards your eye, pull it to the side of your eye, not to the center of your eye. Now what did you notice happens to the distant object as you bring the coin towards your eye? __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ 4. Do you think that our simulation was a fair representation of what happens during a solar eclipse? Why or why not? __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ 5. Is there another way that you can think of to represent an eclipse using the same material? __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________