Salapungan NHS Science Club

EARTH HOUR
March 28, 2026

Tonight, we pause. We switch off the lights - not because we have to, but because we choose to. Earth Hour is more than just 60 minutes in the dark - it’s a reminder that even the smallest actions, when done together, can help light the future of our planet. 🌙💚

For one hour, let the world slow down. No bright screens, no extra lights - just you, your thoughts, and the quiet beauty of our Earth. Every switch turned off is a step toward protecting nature, conserving energy, and showing that we care about the only home we have. 🌿✨

So join millions around the globe and be part of something bigger. Because real change doesn’t need to be loud - it just needs to begin.
Lights out. Hope on. 🌍💡

𝐂𝐋𝐄𝐀𝐍-𝐔𝐏 𝐃𝐑𝐈𝐕𝐄 |
February 20, 2026 🌱

Today was a productive and fulfilling day for everyone involved in our Clean-Up Drive. 🌍💚

With dedication and teamwork, we came together to help keep our surroundings clean, safe, and welcoming for all.

We are grateful to everyone who participated and gave their time and effort to make this activity a success. 🧹🗑️

Small actions today create a cleaner and greener tomorrow. 🌱🧹

𝐂𝐋𝐄𝐀𝐍-𝐔𝐏 𝐃𝐑𝐈𝐕𝐄 | January 30, 2026 🌱

Science in action, not just in theory. Armed with gloves, brooms, and teamwork.

“Every small action counts when it comes to saving our planet! 💚 The Science Club took on a Clean-Up Drive around the school, proving that protecting the environment is a responsibility we can all experiment with. Together, we can make our school a cleaner, greener, and healthier place for everyone.

Cleaning up isn’t just about picking up trash- it’s about teamwork, responsibility, and showing care for the environment. By coming together, we can make a big difference in a short time and inspire others to do the same.

One step, one sweep, and one smile at a time.

Let’s take action, work together, and help our school shine as a cleaner, brighter space for everyone! 🧹✨ Your effort today makes a difference for tomorrow.”

𝗔𝗡𝗚 𝗣𝗔𝗚𝗦𝗔𝗕𝗢𝗚 𝗡𝗚 𝗧𝗔𝗔𝗟 𝗩𝗢𝗟𝗖𝗔𝗡𝗢, 𝟭𝟵𝟭𝟭

Higit isang siglo na ang nakararaan nang magparamdam ng galit ang Taal Volcano sa Batangas. Noong January 30, 1911 nang sumabog ang Taal Volcano at nagbuga ng tinatayang 70-80 million cubic meters ng pyroclastic material at abo. Ang 1911 Taal Volcano eruption ay isa sa mga pinakamapaminsalang pagsabog ng bulkang Taal, na kumitil ng tinatayang 1,300 katao.

Noong January 27, 1911 pa lamang nang maitala ng Bureau of Science (ngayo’y Department of Science and Technology) ang volcanic activity ng Taal. Makalipas ang tatlong araw, tuluyang ibinuga ng Taal ang pinakamalakas nitong pagsabog nang magpakawala ito ng mga putik at abo noong January 30, 1911. Kumalat ang abo sa malaking bahagi ng timog-kanlurang Luzon. Tuluyang nanahimik ang bulkan noong February 8, 1911.

Bagama’t walang pag-agos ng lahar ang naitala, ang aktibidad ng Taal Volcano noong 1911 ay nagresulta sa ilang mga lindol na naramdaman hanggang sa Kamaynilaan. Naitala ang pagkapinsala sa ilang istruktura malapit sa bulkan. Nagkaroon din ng bitak sa bunganga ng bulkan maging sa Pancipit River Valley. Tinatayang nasa 1,335 katao ang nasawi sa pagsabog ng bulkang Taal noong 1911. Karamihan sa mga nasawi ay dulot ng putik at pagkalason mula sa sulfur dioxide na ibinuga ng bulkan.

Cayabyab, Marc Jayson (January 22, 2020). Just How Deadly Is Taal Volcano? Historical Records Describe Its Destructive Past. Retrieved from https://www.onenews.ph/articles/just-how-deadly-is-taal-volcano-historical-records-describe-its-destructive-past

Philippine Journal of Science. (March 2020). Recorded Eruptions of Mayon and Taal Volcanoes from the Philippine Journal of Science. Retrieved fromhttps://philjournalsci.dost.gov.ph/images/pdf/pjs_pdf/vol149no1/perspective.pdf

𝗔𝗡𝗢 𝗔𝗡𝗚 𝗦𝗛𝗘𝗔𝗥 𝗟𝗜𝗡𝗘? 🌧️

Kasalukuyang nakakaranas ng mga pag-ulan ang silangang bahagi ng Southern Luzon at Visayas dahil sa . Ano nga ba itong kilalang nagpapabaha tuwing panahon ng ?

➡ Ang shear line ay palinyang (linear) lugar kung saan may biglaang pagbabago sa direksyon ng hangin dulot ng pagsasalubong ng dalawang hangin na magkaiba ng pinanggalingan, ayon sa American Meteorological Society (AMS).

🌬️ Dito sa Pilipinas, ito ay kadalasang dulot ng pagsasalubong ng malamig na hanging malamig na galing sa hilagang silangan, na tinatawag na amihan (northeast monsoon), at mainit na hangin galing sa silangan (easterlies) o karagatang Pasipiko.

📅 Ito ay kadalasang nakakaapekto sa bansa tuwing panahon ng amihan sa mga buwan ng Oktubre hanggang Marso.

🧭 Nagbabago rin ang posisyon nito, depende sa lakas ng amihan: umaangat ito sa Extreme Northern Luzon kapag humihina ang amihan, at bumababa hanggang sa Mindanao kapag lumalakas ang amihan.

🌧️ Sa pagsasalubong ng dalawang hangin na ito, nabubuo ang maraming mga kaulapan na kadalasan ring nauuwi sa mga pag-ulan at thunderstorm.

⚠️ May mga pagkakataong maraming ulan ang ibinubuhos ng shear line na nagdudulot ng malawakang mga pagbaha at paggugo ng lupa, tulad ng nangyari noong Enero 2023 na kumitil sa buhay ng 45 katao sa Visayas at Mindanao.

𝗦𝗰𝗶𝗲𝗻𝗰𝗲𝗞𝗼𝗻𝗲𝗸

𝗦𝗨𝗣𝗘𝗥𝗠𝗢𝗢𝗡: 𝗔𝗡𝗢𝗡𝗚 𝗠𝗘𝗥𝗢𝗡? 🌕

Ngayong araw, Enero 03, ay muling masasaksihan ang Full Moon sa Pilipinas na itinuturing ring unang ngayong 2026. Paano ba ito nangyayari at ano ang dapat asahan?

Ang 𝘀𝘂𝗽𝗲𝗿𝗺𝗼𝗼𝗻 ay nagaganap tuwing Full Moon o New Moon kapag ang Buwan ay nasa 90% ng pinakamalapit na punto nito sa Mundo. Ang pormal na pangalan nito ay 𝗽𝗲𝗿𝗶𝗴𝗲𝗲 𝗙𝘂𝗹𝗹 𝗠𝗼𝗼𝗻 ngunit mas kilala itong bilang 𝘀𝘂𝗽𝗲𝗿𝗺𝗼𝗼𝗻. Tuwing supermoon, ang Buwan ay maaring maging 𝟭𝟲% 𝗻𝗮 𝗺𝗮𝘀 𝗺𝗮𝗹𝗶𝘄𝗮𝗻𝗮𝗴 at 𝟴% 𝗻𝗮 𝗺𝗮𝘀 𝗺𝗮𝗹𝗮𝗸𝗶 sa karaniwang Full Moon.

𝗞𝗮𝗵𝗶𝘁 𝗻𝗮 𝗵𝗶𝗻𝗱𝗶 𝗴𝗮𝗮𝗻𝗼𝗻𝗴 𝗸𝗮𝗽𝗮𝗻𝘀𝗶𝗻-𝗽𝗮𝗻𝘀𝗶𝗻 𝗮𝗻𝗴 𝗽𝗮𝗴𝗸𝗮𝗸𝗮𝗶𝗯𝗮 𝗻𝗴 𝘀𝘂𝗽𝗲𝗿𝗺𝗼𝗼𝗻 𝗮𝘁 𝗸𝗮𝗿𝗮𝗻𝗶𝘄𝗮𝗻𝗴 𝗙𝘂𝗹𝗹 𝗠𝗼𝗼𝗻, 𝗶𝘁𝗼 𝗽𝗮 𝗿𝗶𝗻 𝗮𝘆 𝗺a𝗴𝗮𝗻𝗱𝗮𝗻𝗴 𝗽𝗮𝗻𝗮𝗵𝗼𝗻 𝘂𝗽𝗮𝗻𝗴 𝘀𝗮𝗸𝘀𝗶𝗵𝗮𝗻 𝗮𝗻𝗴 𝗴𝗮𝗻𝗱𝗮 𝗻𝗴 𝗮𝘁𝗶𝗻𝗴 𝗻𝗮𝘁𝘂𝗿𝗮𝗹 𝗻𝗮 𝘀𝗮𝘁𝗲𝗹𝗹𝗶𝘁𝗲.
Sources: ScienceKonek

𝗥𝗢𝗧𝗔𝗧𝗜𝗢𝗡 𝘃𝘀. 𝗥𝗘𝗩𝗢𝗟𝗨𝗧𝗜𝗢𝗡

Theoretically, we’re about to complete one revolution as we end 2025 and enter 2026. But, what is revolution and what is it’s difference with rotation?

Rotation describes how an object spins around its own axis, 𝗹𝗶𝗸𝗲 𝗮 𝘁𝗼𝗽 𝘁𝘂𝗿𝗻𝗶𝗻𝗴 𝗶𝗻 𝗽𝗹𝗮𝗰𝗲. Revolution, on the other hand, is an 𝗼𝗯𝗷𝗲𝗰𝘁’𝘀 𝗺𝗼𝘁𝗶𝗼𝗻 𝗮𝘀 𝗶𝘁 𝘁𝗿𝗮𝘃𝗲𝗹𝘀 𝗮𝗿𝗼𝘂𝗻𝗱 𝗮𝗻𝗼𝘁𝗵𝗲𝗿 𝗯𝗼𝗱𝘆.

Earth’s rotation creates day and night every 24 hours, while its revolution around the Sun defines our 365-day year. Similarly, satellites don’t spin around Earth to stay in orbit; they revolve around it.
Sources: ScienceKonek

𝗪𝗛𝗔𝗧 𝗜𝗦 𝗔.𝗠. & 𝗣.𝗠.? ⏱️

When setting schedules, we often ask: “7 o’clock—AM or PM?” That’s the question we often ask whenever we’re setting a schedule. But what do they really mean?

These familiar labels are rooted in Earth’s rotation, which takes about 24 hours to complete one full spin on its axis—what we call a day. To keep time organized, many countries now use the 24-hour “military time” format, while others, including the Philippines, still follow the 12-hour system.

In the 12-hour format, time is divided using A.M. and P.M. The A.M. comes from the Latin ante meridiem, meaning “before noon,” and refers to the hours from midnight until just before midday. P.M., from post meridiem or “after noon,” covers the hours from afternoon through the night.

Interestingly, 12:00 noon and 12:00 midnight technically fall under neither A.M. nor P.M. and are more accurately called noon and midnight. To avoid confusion, many countries prefer the 24-hour clock, where time runs continuously from 00:00 to 24:00—so 6:00 PM becomes 18:00.
Sources: ScienceKonek

𝑪𝑳𝑬𝑨𝑵 - 𝑼𝑷 𝑫𝑹𝑰𝑽𝑬🌟
December 5, 2025

It was a meaningful day at Salapungan National High School.

The Science Club came out in full force for our Clean-Up Drive. 🧹🗑️🌿

It wasn’t just about picking up trash, it was about looking out for our planet and taking pride in the place we learn every day. 🌍💚

A huge thank you to every club member who joined us with such positive energy and helping hands. 🤝🙂

Because when we all take part, even the smallest efforts can add up to something really big.


Captioned by: Edward Jacob C. Marzan
Science Club PO

𝐵𝑒 𝑚𝑎𝑎𝑤𝑎 𝑘𝑎 𝑛𝑎 𝑠𝑎𝑚𝑖𝑛, 𝑙𝑎𝑚𝑖𝑔 𝑠𝑎 𝑡𝑒𝑛𝑔𝑎, 𝑠𝑎𝑘𝑖𝑡 𝑠𝑎 𝑢𝑙𝑜.

HAPPY STUDENTS' DAY SALAPUNGIANS!

Join us for a wonderful day of singing and dancing with the Karaoke Booth of SCIENCE CLUB AND YES-O!

PRICES

50- PER HOUR ( plus 3 person)
10 PESOS PER PERSON

𝗡𝗢𝗩𝗘𝗠𝗕𝗘𝗥 𝟬𝟱 𝗦𝗨𝗣𝗘𝗥𝗠𝗢𝗢𝗡: 𝗔𝗡𝗢𝗡𝗚 𝗠𝗘𝗥𝗢𝗡? 🌕

Bukas, Nobyembre 05, muling masasaksihan ang Full Moon sa Pilipinas na itinuturing ring ‘pinakamalapit’ na ngayong 2025. Paano ba ito nangyayari at ano ang dapat asahan?

Ang buwan ay umiikot sa palibot ng mundo ng kada 27.3 na araw. Ang orbit nito ay hindi perpektong bilog kundi ellipse kaya’t may panahon na ito ay malapit o malayo sa Earth.

Ang average na layo ng Buwan ay 382,900 kilometers mula sa Earth. Sa pinakalamayong point nito sa orbit o ‘apogee’, ito ay may layong 406,725 kilometers samantalang ang pinakamalapit o ‘𝗽𝗲𝗿𝗶𝗴𝗲𝗲’ ay 356,355 kilometers lamang. Ang salitang ‘perigee’ ay mula sa Greek words na ‘peri’ (malapit) at ‘geo’ (mundo).

Ang 𝘀𝘂𝗽𝗲𝗿𝗺𝗼𝗼𝗻 ay nagaganap tuwing Full Moon o New Moon kapag ang Buwan ay nasa 90% ng pinakamalapit na punto nito sa Mundo. Ang pormal na pangalan nito ay 𝗽𝗲𝗿𝗶𝗴𝗲𝗲 𝗙𝘂𝗹𝗹 𝗠𝗼𝗼𝗻 ngunit mas kilala itong bilang 𝘀𝘂𝗽𝗲𝗿𝗺𝗼𝗼𝗻 . Tuwing supermoon, ang Buwan ay maaring maging 𝟭𝟲% 𝗻𝗮 𝗺𝗮𝘀 𝗺𝗮𝗹𝗶𝘄𝗮𝗻𝗮𝗴 at 𝟴% 𝗻𝗮 𝗺𝗮𝘀 𝗺𝗮𝗹𝗮𝗸𝗶 sa karaniwang Full Moon.

Kada taon, maaring umabot hanggang 3 o 4 ang makikitang supermoon. Ngayong 2025, mayroon tayong tatlong supermoon sa huling tatlong buwan ng taon.

𝗞𝗮𝗵𝗶𝘁 𝗻𝗮 𝗵𝗶𝗻𝗱𝗶 𝗴𝗮𝗮𝗻𝗼𝗻𝗴 𝗸𝗮𝗽𝗮𝗻𝘀𝗶𝗻-𝗽𝗮𝗻𝘀𝗶𝗻 𝗮𝗻𝗴 𝗽𝗮𝗴𝗸𝗮𝗸𝗮𝗶𝗯𝗮 𝗻𝗴 𝘀𝘂𝗽𝗲𝗿𝗺𝗼𝗼𝗻 𝗮𝘁 𝗸𝗮𝗿𝗮𝗻𝗶𝘄𝗮𝗻𝗴 𝗙𝘂𝗹𝗹 𝗠𝗼𝗼𝗻, 𝗶𝘁𝗼 𝗽𝗮 𝗿𝗶𝗻 𝗮𝘆 𝗺𝗴𝗮𝗻𝗱𝗮𝗻𝗴 𝗽𝗮𝗻𝗮𝗵𝗼𝗻 𝘂𝗽𝗮𝗻𝗴 𝘀𝗮𝗸𝘀𝗶𝗵𝗮𝗻 𝗮𝗻𝗴 𝗴𝗮𝗻𝗱𝗮 𝗻𝗴 𝗮𝘁𝗶𝗻𝗴 𝗻𝗮𝘁𝘂𝗿𝗮𝗹 𝗻𝗮 𝘀𝗮𝘁𝗲𝗹𝗹𝗶𝘁𝗲.