In Natural Science, we learned more things about the nutrition and respiration of plants.
Plants make their own food, they are PRODUCERS. In contrast, animals and fungi are CONSUMERS, they eat other living things.
Plants not only make their own food, but they also produce oxygen that send out to the atmosphere. This process is calledPHOTOSYNTHESIS. And we know that photosynthesis is vital for life on Earth.
Here you have a video to better understand this process.
But plants are living things and so they also need oxygen. The process in which they take in oxygen and release carbon dioxide is called RESPIRATION.
Astronomy is that part of science that studies outer space focusing on stars, planets, comets, galaxies and so on.
We know that people started to study Astronomy as far back as in Ancient Mesopotamia. Civilisations such as Ancient Greeks, Romans or the Mayans also studied Astronomy. However all of these scientists had to observe space just with their eyes.
Aristotle, an ancient Greek astronomer, calculated that the Earth was not flat but a sphere. He observed that the Earth's shadow on the Moon was curved and that when a ship appeared on the horizon, we could see the top before the rest of the ship.
Copernicus was an astronomer that lived in the early 1500s. He came up with the idea that the Sun was the centre of the universe. This was a complete different believe from the idea that the Earth was the centre of the universe.
With the invention of the telescope in the early 1600s, scientists were able to see much further objects and were able also to have a better view of the Moon and the planets.
Galileo Galilei began to study Copernicus' work and felt that his observations of the planets were correct and that the Sun was the centre. This believe was really controversial at that time. Galileo heard of the invention of the telescope in Holland and he decided to build his own telescope. Soon Galileo's version of the telescope was used in all Europe.
Galileo made many discoveries using his telescope: the four large moons around Jupiter and the phases of the planet Venus. He also discovered sunspots and that the Moon was covered with craters. As Galileo studied the planets and the Sun he became convinced that the Earth and the other planets orbited the Sun. However the powerful Catholic Church considered his ideas heresy. At first, they sentenced him to life prison but later on they allowed him to live in his house under house arrest.
Since Galileo's time many discoveries have happened and Astronomy has advanced a great deal.
Men have landed on the Moon. We have great telescopes in the space to observe and investigate. The Hubble Space Telescope has been in space since April 1990 and it's helping us to understand space a little bit more.
Here you have a short video that explains this to you.
But last year in December 2021 an even more powerful space telescope was launched into space: the James Webb Space Telescope
Since 2000 astronauts have lived on the International Space Station (ISS) that takes 92 minutes to orbit the Earth. Pedro Duque the first Spanish astronaut to go into space tells us about life in the ISS.
Finally, Nobel Prize in Physics 2019 was awarded to two astronomers Michel Mayor and Didier Queloz for discovering an exoplanet orbiting a star. That means that right now there are many astronomers looking for planets orbiting stars that have water, liquid water. Astronomy is fascinating, isn't it?
Me pongo en contacto con vosotros para daros unas indicaciones sobre cómo acceder a los libros digitales de Oxford University Press, la editorial de los libros de inglés, naturales y sociales.
1. Si ya estáis dados de alta en Blinklearning, entráis en la página con vuestro usuario y contraseña.
Si no sois usuarios os dais de alta con el nombre de vuestro hijo o hija indicando que sois mayores de edad. O bien dando vuestra dirección como tutores legales.
2. A continuación tendréis que introducir un código de clase para acceder a los libros.
Código de la clase 4º Primara 4º A InglésCL86237617
Código de la clase 4º Primara 4º B InglésCL24847752
De momento tenéis acceso a los de naturales y sociales. Para acceder al Class Book tendremos que esperar a que me manden los códigos y yo os los remita pero sí que podéis daros de alta en el Activity Book con el código del libro que habéis comprado.
3. Es IMPORTANTE que prestéis atención al código asignado a cada clase y los lugares donde hay que indicar el email del alumno y del padre/madre por ser menores de edad.
Es un UNICO CÓDIGO por clase donde ya tenéis los dos libros de inglés y los dos de ciencias.
Recordad que tenéis que esperar a que yo os acepte en la clase virtual.
Os recomiendo que apuntéis la CONTRASEÑA en la agenda.
Espero que podáis acceder a los libros sin problema.
Para cualquier duda o anomalía, podéis poneros en contacto conmigo.
