i wrote about oil on other planets and it was interesting as i got to interact with my classmates and the rest of the sec 1s in astronomy club. It was very fun as i felt it was much better than in class. it was interesting learning with them like how we learnt that Titan, one of Saturn's moons, contains oil. Overall i think this CCA really suits me. I think thr excos are very helpful on how to improve on the slides and overall very friendly
Today i saw a lot of people present about the question; "why we should explore space?" . From the other groups I learnt that the fastest human made aircraft is the Apollo 10 and i think it is really fascinating that the fastest aircraft was made over 50 years ago, I personally think that we would've made a faster aircraft from that point. I also find it interesting that there is other plants that we can develop agriculture on, an possibly able for us to inhabit.
The test was pretty difficult but I think I did alright, even though I did not know a lot of the topics. I felt a little bit stressed as I did not learn a lot of the topics yet but I was still confident in myself and i did alright.
The lesson was mostly a lecture about planets and was alright but then we got to do a quiz and that part was fun, i learned that pluto is a failure and is the only planet title to have been revoked and i think overall it was a fun lesson.
The solar system-astronomy
The sun- is a star, it is a yellow dwarf star it is 99.86% of mass in the solar system. Magnetic waves are tangled due to its rotation, habitable zone is 1AU, the sun is fuelled by nuclear fusion at its core.
Mercury- is a planet, art is the closest planet to the sun, radius is 2440 km, highly eccentric orbit, a year is 88 days it goes at 47 km/s. It is 0.4 AU from the sun. It is the 2nd densest planet, it has a metal core it is about 85% of the radius of mercury.
Venus- is a planet, its diameter is 12104km. It is a low eccentric orbit, its year is 225 days. Its has 0.72AU. Its external core is made of liquid iron and nickel, its internal core is made of solid iron and nickel.
Earth- our planet, the diameter is 12760km, it is the biggest terrestrial
Planets and 5th largest in da solar system. 1 rotation every 23.9 hours and 365.25 days a year. It is 1AU away from the sun. the structure is the crust the mantle and the core.
Mars- a planet, the radius is 3390km. It’s rotation every 24.6 hours. The distance is 1.5AU away from da sun. Mars has a dense core 1500 to 2100 km in radius its made of iron nickel and sulfur.
Jupiter- a gas giant planet, it has a radius of 69911km. 1 rotation every 10 hours, 4333 days for a year. 5.2AU away from the sun. It is made of hydrogen and helium.
Saturn- a gas giant planet, its radius is 120500. One rotation every 10.7 hours, 10756 days a year. 9.5AU away from the sun. It is made of swirling liquids and gases deeper down.
Uranus- an ice giant planet, diameter of 51118 km. It takes 17 hours to rotate and it has 30687 days a year. 19AU from the sun. It is made up of hot dense fluid water methane and ammonia.
Neptune- an ice giant planet, its diameter is 49528 km. It completes an orbit every 16 hours it has 60190 days in a year. It has 30AU. Mostly made of hydrogen helium and methane and going deeper it turns to water.
Pluto- not a planet, its radius is 1151km. It takes 248 earth years for its years. It is 39AU away from the sun. A rocky core surrounded by mantle of water and there is methane and nitrogen frost coat on the surface.
today i was just listening to people talk about equasions that i didn't understand whatsoever, and i felt very confused throughout the lesson as i didn't learn cos and sin yet, i learned what the equasions for trigonomatry but didn't understand, i think next time don't make the sec 1s sit through a lesson about trigonomatry. and the excos were very good 👍 and helpful
I had a decent time listening about the history of rockets and just listening, I think that the presentation was very upfront and direct with the information, there was an activity and it was just decent i think, it could be improved by having more that we need to do and having more time to do the aforementioned activity, I think that having more groups share their presentations more ideal if not all their efforts would go to waste. And i think the presenter was very good👍 . https://docs.google.com/presentation/d/1YPRkNpjHHIuVjqnMSOGDHdpQge2n7Q8lBhxATmF-jRk/edit#slide=id.p
Even though I did well in the booklet and got second place, I learned that blue shifting and red shifting are things, and I also got second place in the blooket. The sessions could be improved by giving us the slides so we can revise them afterwards.
We stood around for 30m and had to wait outside. And we also learnt about Radios and electromagnetic waves, and how to use antennae. I couldn't understand a lot as Gavriel talked too fast.
i learned that galaxies are pog and that galaxies are abundant but far away also. Learning about galaxies has expanded my understanding of the vastness and complexity of the universe, revealing the intricate structures and dynamics that govern celestial bodies. This knowledge has deepened my appreciation for the beauty and mystery of the cosmos, inspiring a sense of wonder and curiosity about our place within it.
we learned about distance and how to find the radius of stars in space and i played ksp and the presenter did a very good job, with things like pace, and having us do interactive things.
we learned about astronomical phenomena and terestrial time. i also learned that things like tides change because of the moon(tbh i alr knew that) also that we have a lot of different ways of telling time(idk how this is related to astro tho) and also that we can die from the solar flairs. also that the moon is red from the atmosphere
we learned about sun's rings and are formed and the Roche limit, and sun. Even though the part about the sun was not explained it was fine i guess. Also accrection was fine as I learned that planets rings, like Neptune, and they wer created i think. also the roche limit is where planets get torn apart due to friction and the gravitational pull of the planet.
I learned about nuclear physics and nuclear fusion and fission and i learned that radiation is poggers and nebulae and is also very poggers. The lesson was also poggers as they had 2 quizzes
I learned about galaxy and solar system and how they are formed. I also learnt more about dwarf planets and the moon. the presentation was fun, but I couldn't hear tessa half the time.
I learned about earth and how things on it formed. I also learnt more about the layers of the earth. the presentation was fun, but I couldn't hear tessa half the time.
we did presentations and i learned abt moon crates and they composition of the moon and its origin
We did bottle rockets for 1h and I got drenched with water was very fun. And for the later part we learned about pluto, moons and rings for certain planets. What we did to make our rockets go higher by pumping less air. This reduction in air pressure makes it so it would not fly backwards. When we added less water, the launch was much faster and we managed to shoot the rocket a little further than others attempts.
the talk about solar weather was very entertaining and was very interesting.
we revised about the solar system, comets, astroids, meteors, the tails on comets, composition on astroids and meteors, jupiter's MASSIVE gravity and how it helps earth and how to moon formed. It was very intresting and I feel that everyone should be more quiet i think.
very poggies lesson, we did universe sandbox, i was with secondary 4s and I did not help that much. We made a planet that was like 90% habitable maybe and we got 1st.
I learned about the Doppler Effect, which describes how the frequency of a wave changes based on the motion of the source or the observer. At first, the concept was a bit confusing, especially understanding why the sound becomes higher-pitched as something moves toward you and lower as it moves away. However, through the teacher’s explanation, videos, and class demonstrations—like hearing the change in pitch of a moving siren—I was able to visualise it more clearly. I also found the diagrams helpful, especially when we looked at how the wavefronts compress or spread out. This lesson helped me see how physics applies to everyday experiences, and I now better understand real-life examples like ambulance sirens or how astronomers use the Doppler Effect to study stars.