Topic: Origins of the Universe Essential Question: How do scientists think our universe was created and what evidence supports it?

Defined as everything that physically exists All of space and time Topic: Origins of the Universe Essential Question: How do scientists think our universe was created and what evidence supports it? The Universe Defined as everything that physically exists All of space and time All forms of matter and energy

Topic: Origins of the Universe Essential Question: How do scientists think our universe was created and what evidence supports it? Big Bang Theory All galaxies started from one huge mass of densely packed matter The densely packed matter exploded with a “big bang” sending out matter and energy in all directions Over time the matter grouped together to form the stars and galaxies that now exist

Big Bang

Evidence that the universe is expanding (supports Big Bang Theory) Topic: Origins of the Universe Essential Question: How do scientists think our universe was created and what evidence supports it? The Red Shift Evidence that the universe is expanding (supports Big Bang Theory) Distant galaxies give off a red light The red end of the spectrum has the longest wavelengths

Topic: Origins of the Universe Essential Question: How do scientists think our universe was created and what evidence supports it? The Red Shift If a galaxy is moving far away, the wavelengths become longer (or stretched out) All galaxies beyond our own show a red shift, so it is believed that the universe is expanding

Topic: Origins of the Universe Essential Question: How do scientists think our universe was created and what evidence supports it? The Blue Shift Galaxies that are moving closer give off a blue shift If a galaxy is moving closer, the wavelengths become shorter giving off a blue shift

Topic: Origins of the Universe Essential Question: How do scientists think our universe was created and what evidence supports it? Open Universe a model of the universe in which the universe expands forever Closed Universe A model of the universe in which the universe, because of gravity, everything ejected during the Big Bang will eventually be pulled back to a central point.

Now take some time… Take 2 minutes to go over your notes and highlight or underline the main ideas that answer the essential question, you should not highlight everything: Essential Question: How do scientists think our universe was created and what evidence supports it?

Time to use the left hand column You will now write your own questions using the verbs provided.

Defined as everything that physically exists All of space and time Topic: Origins of the Universe Essential Question: How do scientists think our universe was created and what evidence supports it? The Universe Defined as everything that physically exists All of space and time All forms of matter and energy Choose one verb to write your question: Define Describe

All galaxies started from one huge mass of densely packed matter Topic: Origins of the Universe Essential Question: How do scientists think our universe was created and what evidence supports it? Choose one verb to write your question: Define Describe Explain Big Bang Theory All galaxies started from one huge mass of densely packed matter The densely packed matter exploded with a “big bang” sending out matter and energy in all directions Over time the matter grouped together to form the stars and galaxies that now exist

Evidence that the universe is expanding (supports Big Bang Theory) Topic: Origins of the Universe Essential Question: How do scientists think our universe was created and what evidence supports it? Choose one verb to write your question: Define Describe Explain The Red Shift Evidence that the universe is expanding (supports Big Bang Theory) Distant galaxies give off a red light The red end of the spectrum has the longest wavelengths

Topic: Origins of the Universe Essential Question: How do scientists think our universe was created and what evidence supports it? The Red Shift If a galaxy is moving far away, the wavelengths become longer (or stretched out) All galaxies beyond our own show a red shift, so it is believed that the universe is expanding Choose one verb to write your question: Define Describe Explain

Galaxies that are moving closer give off a blue shift Topic: Origins of the Universe Essential Question: How do scientists think our universe was created and what evidence supports it? The Blue Shift Galaxies that are moving closer give off a blue shift If a galaxy is moving closer, the wavelengths become shorter giving off a blue shift Choose one verb to write your question: Define Describe Explain

Topic: Origins of the Universe Essential Question: How do scientists think our universe was created and what evidence supports it? Open Universe a model of the universe in which the universe expands forever Closed Universe A model of the universe in which the universe, because of gravity, everything ejected during the Big Bang will eventually be pulled back to a central point. Choose one verb to write your question: Define Describe Explain

Now let’s write a summary Look at each question you wrote on your own, and answer each question in a complete sentence.