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Earth history  
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Grade 7  
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This is a website about microbiology. Learners may explore information about microorganisms, extremophiles and extreme habitats, as well as the ecology, diversity and evolution of micro-organisms.

This is a set of two activities about time. First, in Cosmic Calendar, learners will scale the evolution of the Universe to a one-year calendar, with the Big Bang occurring on the first moment of January first. Then, in Time-Line Scale Model of the... (View More)

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