Transcript Download: Cool pots - PPT #45083

Page 1
 Grace lives in Sudan.
Grace’s Mum,
Hawa Abbas is a farmer.
 The temperature
in Sudan is over 40 °C.
 Fruit and vegetables go
rotten in a couple of days.
 The village Grace lives in does not have electricity
so they cannot keep food cool in a fridge.
Big question How could Grace’s family keep their
fruit and vegetables fresh for longer?
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Image courtesy: Practical Action Sudan
Page 2
lid
damp
sand
small
yoghurt pot
flower pot
ice cube
How will you compare
the changes to each ice cube?
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Images courtesy: www.practicalaction.org.uk
Page 3
I think the ice cube in
the double pot will start to
melt but more quickly
because the extra layer
will make it warmer inside.
I think the ice cube
in the double pot will
start to melt too but
slower because it is
cooler inside.
I think the ice
cube in the single
pot will melt
faster because
there is nothing
to block the
sunlight.
I think the ice cube in the
double pot will start to melt
but slower because the
heat can’t get in so easily.
What do you think
will happen next?
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Page 3
Grace’s family
made a zeer pot.
A zeer pot
is made of
a large and
small clay
pot with
damp sand
filling
the gap.
As the
water soaks
through the
large pot it
evaporates.
This cools
the pot and
keeps the
food fresh.
Small clay pot
Damp sand
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Large clay pot
Image courtesy: Practical Action Sudan
Page 4
Now Grace’s mum can keep the fresh fruit
and vegetables they pick for longer. She
can feed her family and sell any that are
left over in the market.
Grace in the zeer pot!
Grace is happy that she can have
delicious fresh tomatoes everyday.
Grace’s mum putting
fruit and vegetables
into her zeer pot.
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Images courtesy: Practical Action Sudan
Page 6
This activity was produced by
the Association for Science Education in partnership with
Practical Action as part of the Global Learning Programme.
Promoting Excellence in Science Teaching and Learning
The GLP is a ground-breaking new
programme which will create a national
network of like-minded schools,
committed to equipping their students
to succeed in a globalised world by helping
them to deliver effective teaching and
learning about international development
and global issues at Key Stages 2 and 3.
ASE is providing the science education
support for the Global Learning Programme
which is funded by the Department for
International Development. This activity can
be found on the Global Learning
Programme www.glp-e.org.uk, ASE Primary
upd8 primaryupd8.org.uk and Practical
Action practicalaction.org.uk/schools
websites.
Thank you to the children of Year 6 at Camp Primary and Nursery School, St. Albans
for sharing their ideas and to their teachers for making time available for this project.
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