Instructional Planning
Detailed Lesson Plan (DLP) Format DLP No.: Learning Area: SCIENCE 8 Grade Level: 8 Quarter: 2 Duration: 1 15 hour Learning Code: Competency/ies: 11. explain the regular occurrence of meteor showers S8ES-IIi-j-24 (Taken from the Curriculum Guide) Key Concepts / Curiosity - Intellectual honesty Understandings to be Critical-mindedness - Perseverance Developed Open- mindedness Objectivity
Domains Knowledge Skills Attitude Values
II. Content III. Learning Resources
IV. Procedures IV. 1 Introductory Activity ( 5 minutes) IV. 2 Activity ( 5-10 minutes)
I. Objectives Within the period, the Grade 8 students with at least 75% accuracy are expected to: a. familiarize the source of a meteor shower; b. describe the occurrence of a meteor shower; and c. discuss the source of some meteor showers through a quiz bowl.
COMETS, ASTEROIDS AND METEORS Science 8 Learner’s Module Science 8 Teacher’s Guide Science and Technology I: Integrated Science Textbook Video: https://www.youtube.com/watch?v=O4QrnC9vLs8 PowerPoint Presentation
1. The teacher will let the students watch a video entitled “Perseid meteor shower in 2015”. After, the teacher will then utilize the inquiry-based approach to generate the flow of the topic. 1. The teacher will engage the students in an activity. Activity: Luck in a Shooting Star! Objectives: a. familiarize the source of a meteor shower; b. describe the occurrence of a meteor shower; and c. discuss the source of some meteor showers through a quiz bowl. Materials: 10 pcs. of bond paper strips marker Procedure: 1. The teacher will divide the class into 5 groups and each group will be provided with 10 pcs. of bond paper strips and a marker. 2. 10-item multiple choice questions will be flashed in the screen and each group will write the letter of their answer in the strips of bond
3. 4.
paper. When the teacher will signal “Time is up!”, the answer of each group will be raised and checking will follow. Each question will have 1 point to have 10 points as the perfect score. Luck in a Shooting Star!
Month
August October
IV.3 Analysis ( 5-10 Minutes)
IV.4 Abstraction
Source of meteoroid
Name of the meteor shower
Constellation (where the meteor shower seemm to come from) Perseus Draco
Comet Swift-Tuttle 1.Perseid Comet 3. Draconid 21P/Giacobini-Zinner October 4. Comet Halley Orionid Orion November Comet Tempel-Tuttle 6. Leonid Leo November Comet Encke 7.Taurid Taurus December 8. Asteroid 3200 Geminid Gemini Phaeton 1. What is the name of the meteor shower that comes from the costellation Perseu? a. Draco b. Perseid c. Leonid d. Comet Halley 2. What is a meteor shower ? a. a star b. light phenomenon c. smog in the atmosphere d. bulalakaw 3. What is the name of the meteor shower that comes from the constellation of Draco and from the Comet 21P/Giacobini-Zinner. a. Leonid b. Comet Halley c. Comet Encke d. Draconid 4. What is the source of meteoroid of the meteor shower Orionid? a. Orion b. Comet Halley c. Gemini d. Comet Encke 5. Generally, there are three types of meteorites, EXCEPT: a. stony b. stony-iron c. iron d. sulphuric-iron 6. What meteor shower that comes from the constellation Leo? a. Comet Tempel-Tuttle b. Comet Encke c. Gemini d. Leonid 7. What meteor shower that comes from the constellation Taurus? a. Taurid b. Comet Encke c. Leo d. Orionid 8. The meteor shower Geminid comes from the meteoroid_____________. a. Asteroid 3200 Phaeton b. Comet Halley c. Gemini d. Perseus 9. Why do meteors in a meteor shower seem to come from one point in the sky? a. because they are travelling in parallel paths with the same velocity. b. because they are travelling in perpendicular paths with the same speed. c. because they appear gradually in the sky. d. because they travel in the same angle 10. There are how many meteorites in the Philippines that are accepted internationally? a. 1 b. 3 c. 5 d. 7 1. The teacher will elaborate the activity by asking the following questions: a. How was the activity? b. What is a meteor shower? c. Why does a meteor shower occur? d. Why does it seem that meteors during a meteor shower appear to come from only one point in the sky? 1. The teacher will discuss further :
( 10-15 minutes)
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The numbers of meteors that can be seen during a meteor shower vary. It starts with the appearance of a few meteors per hour, increasing in frequency until it reaches its peak of 1-2 meteors per minute, and then declines. The table below shows some of the more famous annual meteor showers and the month when they reach their peak. The dates in the peak month vary and astronomers make forecasts of the peak days (usually lasting for three days) every year.
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Usually, the meteoroids that cause meteor showers come from comets, but they may also come from an asteroid like in the case of the Geminids. Earth passes through Asteroid3200 Phaethon’s orbit where some fragments from the asteroid are found. Once these fragments enter Earth’s atmosphere, they burn up. Meteoroids from comets appear fuzzy because of the ice particles while those from asteroids are clearer and distinct because they do not have these ice particles. It is a visual treat to see a meteor at night; more so if you get to see a meteor shower. How much and how well you can see meteors in the sky depend on several factors: air pollution; light pollution; the time of day; weather conditions; size of the meteoroids; source of the meteoroid (comet versus asteroid); and the chemical composition of the meteoroid itself. It is harder to see them in cities where there are many artificial light sources and where the air tend to be more polluted causing a smog or haze to block the light coming from meteors). Meteor showers are easier to observe at night especially between midnight up to around an hour before dawn. Meteorites are of importance to scientists in studying the occurrence of different elements and compounds on Earth. This information is in turn important in studying our mineral resources which is an important industry in any country. Generally, there are three types: stony, stony-iron, and iron meteorites. In the Philippines, there are only five meteorites that have been accepted internationally. The elements and compounds enumerated in the table show that meteorites are very rich in mineral resources. A comet or asteroid does not only bring with it minerals from space but also causes the Earth rocks found in these areas to change in chemical composition. The presence of these meteorites and impact craters hold much potential
for the mining industry aside from being objects of scientific scrutiny.
IV.5 Application ( 8-10 minutes) IV.6 Assessment ( minutes)
1. The teacher will let the students share their experiences in witnessing a meteor shower. 1. The teacher will conduct an assessment through paper and pen method. 2. The teacher will project the questions in the PowerPoint. I. Instructions: Answer briefly but concisely in a ½ crosswise. 1. What is a meteor shower? 2. Why does a meteor shower occur?
V. Remarks VI. Reflection VII. Assignment
The teacher will let the students to ask elderly people about the superstitious beliefs /practices about comets and asteroids.
Prepared by: Name: JENNIFER N. BERCERO Position/Designation: Student Teacher Contact Number: 0912-1254-243
School: City of Bogo Science and Arts Academy Division: Division of City of Bogo Email address:
[email protected]
References:
Science and Technology I: Integrated Science Textbook. NISMED. 2012. pp. 281. Science 8 Learner’s Module. Campo, Pia C., et al. 2013. pp. 163-165. Science 8 Teacher’s Guide. Campo, Pia C., et al. 2013. pp. 109-110.
