Topic Exploration Pack Learner Activity Task 1 Red shift and cosmic microwave background radiation – Task 1 allows you to look at phenomenon within space that allow scientists to show that the Universe is expanding and provide the Big Bang theory. Read the statements and place them into one of the two columns depending on which they relate to. Secondly using the statements explain how red shift and cosmic microwave background radiation are evidence for expansion of the Universe. Radiation There are When an With a distant In the This tells us created at the microwaves object moves star the spectrum of that distant beginning of coming from away from us, absorption light from the galaxies are the universe. every its light waves spectrum has sun there are moving away direction in are stretched moved to the black lines from us. space. into lower red end. where helium frequencies has absorbed or longer light. wavelengths. Red shift Cosmic microwave background radiation
Topic Exploration Pack Learner Activity Task 1 – Red shift and cosmic microwave background radiation Task 1 allows you to look at phenomenon within space that allow scientists to show that the Universe is expanding and provide the Big Bang theory. Read the statements and place them into one of the two columns depending on which they relate to. Secondly using the statements explain how red shift and cosmic microwave background radiation are evidence for expansion of the Universe. Radiation created at the beginning of the universe. There are microwaves coming from every direction in space. When an object moves away from us, its light waves are stretched into lower frequencies or longer wavelengths. With a distant star the absorption spectrum has moved to the red end. In the spectrum of light from the sun there are black lines where helium has absorbed light. This tells us that distant galaxies are moving away from us. Red shift Cosmic microwave background radiation
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