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ملاك عمر تاسع د

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A_ Calendar is a system of organizing days. This is done by giving names to periods of time, ty pically days, weeks, month and years.
B_  Lunar is related to the Moon. Solor is related to the sun.
C_Derived from the Roman gods, leaders, festivals and numbers.
Q2-Astronomy is the science that is concerned with the scientific study of celestial bodies such as galaxies, stars, comets, and planets, and the study of all phenomena that occur outside the atmosphere such as the cosmic microwave background radiation. and physics.

abn alhaytham hu 'abu alealii alhasan bn alhasan bn alhaytham 'aw abn alhaytham , waqad eurf fi almasadir al'ajnabiat bi "Alhazen" , wahu ealim earabiun muslim wasie almaerifat fi eulum mutaeadidat ; kalriyadiaat , waltibi , walfulk , walfalsafat , walfizya' , kama annh kutib fi almantiq , wal'akhlaq , walsiyasat , walshier , walmusiqa , waeilm alkalam , bial'iidafat 'iilaa mulakhasat likutub 'aristu wajalinyus , amma 'akbar musahamatih almashhudat htta alwaqt alhalii fi eilm albasariaati Ibn al-Haytham is Abu al-Ali al-Hasan ibn al-Hasan ibn al-Haytham or Ibn al-Haytham. He was known in foreign sources as “Alhazen,” an Arab Muslim scholar with extensive knowledge in various sciences; Such as mathematics, medicine, astronomy, philosophy, and physics, and he also wrote on logic, ethics, politics, poetry, music, and theology, in addition to summaries of the books of Aristotle and Galen.


About the life and death of Ibn al-Haytham in Basra, but he left the judiciary to study the various sciences after the spread of competing religious movements that caused turmoil at that time. Ibn al-Haytham traveled to many countries such as Spain, and also lived in Egypt for a long time, after the Fatimid Caliph al-Hakim summoned him to it by the command of God, where he asked him to find a solution to this problem. Nile water overflowing.
Leen Mamoon Hamad 🪐🖤
Ninth grade🪐🖤

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حنين نضال نشوان تاسع (ج).

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حنين نضال نشوان تاسع (ج).

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ميسون بلال نصر
التاسع ب

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ماريا كستيرو تاسع د

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إيمان خليل علي ابو سليم _ تاسع ب

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هنا أيمن زكي حسن
الصف التاسع د

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. I will answer comprehension questions:

(a) What do calendars indicate?

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(b) Lunar is related to the ----------------

Solar is related to the  ------------

(c) where does the origin of this month come from?

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2. I will write a paragraph (100 words) about an Arab astronomer who was interested in the succession of day and night. (I will include the following information: his name, date of birth and death, where he lived and his achievements)

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Stop: Look at the picture. What can you see?

Think: How is a calendar related to the succession of day and night?

Reflect: What do we use calendars for?

There are two main calendars used for indicating dates: a lunar calendar and a solar calendar. A lunar calendar is a calendar based on the monthly cycles of the Moon’s phases, whereas a solar calendar is based on the solar year, the time it takes the Earth to revolve once around the Sun. A solar year is about 365.25 days long, while a lunar month is about 29.53 days long.

Origins of the months’ names

January: Named for the Roman god Janus, protector of gates and doorways.

February: From the Latin word februa, “to cleanse.”

March: Named for the Roman god of war, Mars.

April: From the Latin word aperio, “to open (bud),” because plants begin to grow in this month.

May: From the Latin word maiores, “elders,” who were celebrated during this month.

June: From the Latin word juvenis, “young people.”

July: Named to honor Roman dictator Julius Caesar.

August: Named to honor the first Roman emperor Augustus Caesar.

September: From the Latin word septem, meaning “seven,” because it was the seventh month of the early Roman calendar.

October: Its name comes from octo, the Latin word for “eight.”

November: From the Latin word novem, “nine”

December: From the Latin word decem, “ten,”