Miss Brenda 3A
miércoles, 2 de abril de 2014
Stippling technique
Pointillism technique
martes, 1 de abril de 2014
Soil profile, soil layers.
https://www.youtube.com/watch?v=R0MEVLTsvL8
Soil types and soil styructure
https://www.youtube.com/watch?v=ob2AMqZMLiw
Types of Rocks and rocks cycle
https://www.youtube.com/watch?v=Pwlr2uSSgcc
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