Biology experiments at home have one structural difference from chemistry or physics: they take days to weeks rather than minutes. That is the tradeoff — slower payoff, but the results are about living things, which most kids find more interesting than a colour change. Everything below uses kitchen or garden materials. Two involve mould, so … Read more
What is pollination? It is the transfer of pollen — containing the male gametes — from the male part of a flower to the female part, so fertilization can happen. Plants cannot walk over and introduce themselves, so they outsourced. Roughly 75% of the world’s food crops depend to some degree on animal pollinators. The … Read more
Why do leaves change color? The common assumption is that autumn somehow paints them. It does the opposite: the orange and yellow were there the whole time, hidden under green. Fall is the moment the green gets taken away and the colors underneath finally show. Two Pigments, Two Different Stories Pigment Color Present in summer? … Read more