The solar system
Link- The Solar System — our home in space-we82e3
- Our solar system is divided into 2 categories, Mercury, Venus, Earth and Mars are terrestrial planets. Jupiter, Saturn, Neptune and Uranus are gas giants.
- Mars has a mountain that is 26km high and it’s more than 3 times as high as Mount Everest.
- Jupiter draws most of the dangerous asteroids away from earth.
- Why do the biggest planets have the most moons?
- What would happen if we didn’t have gas giants and all the planets were the same size?
- I now understand how the solar system works.
This video was about how in 2012 NASA successfully landed a robot on Mars’ surface. It said that Curiosity is a robot that with help us find samples that could help figure out if man kind could possibly live there in around about 35 to 40 years but that’s just a prediction, nothing is set in stone or written in blood.
- It was an eight month journey from Earth to Mars. Its shield had to survive 1600 degrees as it slammed into Mars’ atmosphere. Then there was seven minuets to slow it down from 20 thousand kilometers to 0. They call it the seven minuets of terror.
- If one thing went wrong 2.5 billion dollars and years of work could’ve been wasted.
- Curiosity isn’t the first robot to land on Mars’ surface, but it is the biggest. It’s job is to roam around analysing rocks using a drill and even a laser. The aim is to learn more about what the red planet is made of. It’s also looking for signs of life.
- Mars is most like earth because it has an atmosphere and although it’s covered in dessert there are signs that there was once life there.
- Are there other planets that have an atmosphere and are signs of water?
- Are they still studying Mars now?
- What I’ve learnt from this video is that not everything is as it seems. For example: A long time ago we didn’t even know that Mars’ could be a planet with human life on it.
Ancient study of astronomy
This video talked about the ancient study of astronomy. It mention three main components of our understanding today on the study of space. The three cultures were Babylon, Mayan and ancient Greek. Even though there have been many discoveries over the years these are the base ones.
- The Babylons invented one of the first calendars. It was a mathematical model that could record giant astronomical events and now you may recall them as things to record time.
- The Mayans were interested in horoscopes as well as the Babylons.The Mayans had documents on their space study but unfortunately they were burnt by the Spanish conquistadors.
- A Greek astronomer in Rome called Tallemy, discovered the Ptolemaic system. That was his most famous discovery. It stated that Earth was in the center of the universe. Later on this statement was proven to be incorrect. Also Hipparticus ( who was considered to be the world’s most famous astronomer) recorded many stars and invented the procession of the equinoxes. Which is the term for the earth wobbling around its axis.
- What caused the Spanish conquistadors to burn the Mayans’ studies?
- What made Tallemy think that the earth was in the center of the universe?
- I learnt that we take a lot of things for granted , such as calendars but if these three cultures didn’t discover these things we probably wouldn’t even know what day it is.
Cape Town Crisis
This video was about the Cape Town, South Africa, crisis. Currently Cape Town is suffering from a continuous drought. They are all dreading the day when they’ll run out of water. Also known as day zero. Residents are doing the best they can to avoid the day when their taps will run dry. They even have to go to water donations.
- Cape town has had water restrictions since February the 1st.
- The town has been restricted to 50 liters a day. And that won’t get you that far. For example: Washing the dishes is around 18 L. A 90 second shower is 15 L. One toilet flush, 9 L. Washing your hands 3 L. Cooking, 2 L. Drinking water, 2 L. 1 dog bowl, 1 L. And that’s your 50 liters.
- Cape Town the only city that has to suffer from taps running dry.
- Will the water restrictions change when the drought is over?
- If the restrictions change are there ways to prevent this from happening again?
- Now I understand the horrible affects of a drought and what the future can hold if you get stuck in one. How scary is that? Knowing that you can run out of water at any time. Have you ever been in a drought? Comment down below.
The ring of fire is where the most natural disasters occur. Three Quarters of the world’s volcanoes are included in the ring and so are 90% of the world’s earthquakes. From what I saw in this video I have come to a realization how life changing these natural disasters are in a bad way.
My understandings– Blue
Kids are often asked to write assignments. But it’s not everyday an assignment can give you a chance to go overseas. A girl called Lucinda Duxbury wrote an assignment about a soldier called Leslie Varley Duxbury who fought for Australia in World War 1. It was his first and last trip overseas before he was killed on the battle field in France. Before Leslie left he wrote a song called Come On Australians. He was 24 when he wrote this encouraging song. Leslie and thousands of other soldiers traveled by boat. This is a very inspiring story by Lucinda Duxbury.
Australians soldiers in World War 1 saved a french primary school.
What I’ve learnt from this inspiring story is why we pay our respects to all those soldiers that risked their lives for us and who fought to protect our country so we could be where we are today. LEST WE FORGET.
You’ve probably got a friend who’s addicted to their phones and social media. But while your posting photos and collecting likes there a people on Facebook collecting a huge amount of your data. This just shows how dangerous the internet can be. And why you need to be super careful. Christopher Wylie says a big US research firm he used to work for called Cambridge Analytica collected data inappropriately and used it to influence the outcome of the 2016 US Presidential election.
Christopher Wylie says in 2014, Cambridge Analytica took information from people who participated in one of those quizzes (and all their friends) and used it to targets ads that were pro-Donald Trump and they might have helped him win the 2016 US election, and become president.
Why do people do things like this?
What are they going to get out of it?
What’s the point?
Nelson Mandela, Barack Obama, Mary Mackillop, Barack Obama, Julia Gillard , Cathy Freeman, Bill Gates, Tony Abbott are all great leaders of the past. But who will be our future leaders? This program is called young leaders. It’s where the possible leaders for the future are able to be talked to by some powerful leaders. Then you have a choice to be filmed where you have to state a problem and how you can help make a change to the world.
This video was about democracy and how ancient Greece made it a thing even though it might not have been as fair as it is now. It also showed other types of leadership and government such as democracy, anarchy, communism, dictatorship, monarchy, republic and totalitarian state.
1. Democracy is a mash up between two Greek words: demos= people and kratos= power or rule 2. Democracy= In a democracy the people elect the government. Everyone who is eligible to vote has a chance to have his or her say over who runs the country. 3. Anarchy= Anarchy is a situation where there is no government. In an anarchy, every person does their own thing; there are no rules or organisation. This can happen after a civil war in a country, when a government has been overthrown and different groups are fighting for control. 4. Communism= Communism is a system where the government plans and controls the economy, owning all the businesses and farms. In its ideal form, all the labour and the goods produced are equally shared by the people. 5. Dictatorship= This is a country ruled by a single leader who was not elected by the people. In this situation the leader may use force to keep control. In a military dictatorship, the army is in control and the leader is the head of the army. 6. Monarchy= A monarchy has a king or queen. In some traditional monarchies this person is the only ruler. In others, like the United Kingdom, it is a constitutional monarchy, which means there is also a democratic government. The government has most of the control and the power of the Queen is limited. 7. Republic= A republic is a country that has no monarch. The head of the country is usually an elected president. Some people in Australia want our country to become a republic. 8. Totalitarian state= This is a country with only one political party. People are forced to do what the government tells them and they may also be prevented from leaving the country.
with help from
Just 15k from Sydney is dragon territory .These creatures are native to Australia. They can be found mostly on the south-east coasts. They are related to sea horses and mostly just drift about in the water. the only problem is these creatures are becoming harder and harder to spot not because they are really good at camouflaging. to help this problem instead of tagging each one they find they are asking scientists to take photos of each one they find so the people who organize this name each one and they can tell which one is which.