2. SOLAR COOKER
A solar cooker uses the energy of the Sun to cook food. An
essential part of the cooker is a reflector- a shiny surface
that reflects and concentrates the Sun’s energy. They
usually have parabolic shape, the size may differ.
VERY BIG RATHER SMALL
3. DIFFERENT TYPES OF SOLAR
COOKER
• Three broad categories: the box cooker first
• box cookers; built by Horace de
Saussure in 1767;
• panel cookers; Reach temperature
90–150 °C
• reflector cookers.
focus light on a cooking container
these are in use in Refugee reach temperatures of 315 °C and
camps around the world above
4. LATVIAN SOLAR COOKER
• To make a solar cooker we need a shiny surface to reflect
and concentrate the Sun’s energy
• We took a bowl:
5. LATVIAN SOLAR COOKER
• We have few sunny days in winter. And the days are
pretty short that is the reason why we could not make a
real solar cooker by using solar power.
• As an alternative, we took a lamp:
6. LATVIAN SOLAR COOKER
Our first experiment, we did not cook food, but we tried to
melt a candle
BEFORE:
AFTER:
In 40 minutes (after a lesson)
we saw that the candle had
melted
8. LATVIAN SOLAR COOKER
• It was like:
«Has the chocolate melted?
Can we use it for decorating
the cake?»
• The aim was to have fun
and learn something new!
9. LATVIAN SOLAR COOKER
Science teachers • Convex mirror
Mr.Švarcs and
Mr. Suveizda advised us
to use a convex mirror to
collect the light.
10. LATVIAN SOLAR COOKER
• As it was not a sunny And we tried to find focus.
day, we used a lamp, We found it but it would
take a lot of time to wait
AGAIN
until the paper starts
burning
11. LATVIAN SOLAR COOKER
• Science teachers were mocking at us: «When your
cooker is ready, invite us to a barbecue party»
THIS : INSTEAD OF THIS:
12. LATVIAN SOLAR COOKER
• In spring we will make a solar cooker by using solar
energy and not a lamp.
13. COMENIUS TEAM.
The part of the team
Karīna,Laura and Jānis who are now in Drama
And teachers Eva and Guna you probably remember