Operation Manual

A beginner’s guide to Scratch
21
Hands on: the Pollination Project
This is the storyboard of my pollination project. I added two more
costumes to my bee sprite to show it carrying pollen and I have
drawn a flower sprite with some stamens in blue.
But I didn’t want to stop there. I wanted the bee to visit the second flower –
a female – from the other side of the screen, so I copied all four costumes for the
bee sprite and flipped them horizontally.
I also copied, flipped and edited the male flower to create a female flower sprite.
I have given it two costumes. One shows the stigma without pollen and the other
with pollen. Let’s have a look at the resulting animation.
I also decided that I only wanted one flower on screen at a time. So, I had to add
scripts to make my flowers disappear and appear at the right points in the
animation. I used the Looks blocks “show” and “hide” for this.
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Notes:
1. A bee flies towards a male flower. 2. The bee pauses to suck up nectar
and collect pollen.
3. The bee then flies off with pollen
from the flower’s stamens.
4. The bee flies toward the female
flower.
5. The bee sucks nectar and this time
deposits pollen.
6. The bee flies off leaving pollen on
the stigma.