plants shading
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Plant windows
Preserve and explore natural treasures from a walk through the woods.
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Which seeds are these?
What grows from these little seeds?
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Life cycle of a snowdrop
The growth stages of a snowdrop as a layered puzzle.
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Life cycle of a bean
The growth stages of a bean plant as a layered puzzle.
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Colormatching with clothes pins
Colors from yellow to purple and from light to dark.
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Shades sorting game
'ligther than... and darker than' in the colours of the rainbow