The Big Bang: For our first project of the year, we learned about our universe and how it started. One of the most probable theories of how the universe started, is The Big Bang. Basically, the big bang is a single explosion that happened 13.8 billion years ago and ever since that explosion, the universe has been expanding. The three strongest pieces of evidence to support this theory are redshift, the cosmic microwave background and the process of a star’s life and how they create all of our elements. We were asked to make models to show each of these and how they support the big bang. In my team, I had Liliana, McKenna, and Priscilla. The Redshift and Expansion Model: https://spark.adobe.com/video/CRYFB3DtSmwvc This is the model to show what Redshift is and how it shows that the universe is expanding. The Cosmic Microwave Background Model: https://spark.adobe.com/video/ar4r1CvCjcCJz This is the model to show the Cosmic Microwave Background and how it supports the theory of the Big Bang. The Life Cycle of Stars Model: This is our model to show the Life Cycle of Stars and how they create the elements. Low mass: Low-mass stars start in a planetary nebula where there is a low amount of matter. A low mass star starts with hydrogen and from there create all elements up to neon. From there it cools and expands due to the lack of fuel (hydrogen) and releases the elements. From there all that excess material forms a planetary nebula. From there it continues to cool to become a white dwarf. The final stage of a low mass stars life is a black dwarf which is basically nothing, it is when a white dwarf cools enough that it no longer puts off a sufficient amount of temperature. High mass: High-mass stars are created when a stellar nebula has a lot of matter. A high mass star is capable of making up to element 26 during its first stage. Unlike a red giant, a super red giant collapses in on itself layer by layer. When a red giant collapses as far in on itself as it can it releases a burst of energy, creating a giant explosion. From here it will become one of two things. If the energy is more than the mass the once high mass star will become a neutron star, but if the mass is greater than its energy, it will become a black hole.
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Final Video Link: https://spark.adobe.com/video/CRYFB3DtSmwvc
In this video, I talk about what Redshift is and how it shows us that our universe is in fact expanding. I used video clips from other youtube videos and I recorded my voice explaining this topic. Enjoy! Youtube videos used: https://www.youtube.com/watch?v=TheFr7Nl-zY https://www.youtube.com/watch?v=fKgvWYp2wi4 https://www.youtube.com/watch?v=O57DyNMRGY8 https://www.youtube.com/watch?v=ljl_9pI97-s Final Video Link: https://spark.adobe.com/video/ar4r1CvCjcCJz
In this video, I talk about what the Cosmic Microwave Background is and how it is one of the strongest pieces of evidence for the Big Bang. I used video clips from other youtube videos and I recorded my voice explaining this topic. Enjoy! Youtube videos used: https://www.youtube.com/watch?v=5EanYhkv5P8 https://www.youtube.com/watch?v=hDcWqidxvz4 https://www.youtube.com/watch?v=gUnsKJfV5_U https://www.youtube.com/watch?v=yaX4iGw-b_Y Here I show the lifecycle of stars and how they produce the elements we see all around us. I did draw this myself. Also, note that in the Stellar Nebula there are four Hydrogens (H) at the top, then those Hs are added together to make two Heliums, then those add together to make one Beryllium. Enjoy!
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