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Comenius team
Shpogy Secondary school
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
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
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:
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:
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
LATVIAN SOLAR COOKER
• The we wanted to try to melt something edible


CHOCOLATE:
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!
LATVIAN SOLAR COOKER
Science teachers            • Convex mirror
 Mr.Švarcs and
 Mr. Suveizda advised us
to use a convex mirror to
collect the light.
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
LATVIAN SOLAR COOKER
• Science teachers were mocking at us: «When your
 cooker is ready, invite us to a barbecue party»




  THIS :                             INSTEAD OF THIS:
LATVIAN SOLAR COOKER
• In spring we will make a solar cooker by using solar
 energy and not a lamp.
COMENIUS TEAM.
               The part of the team 
   Karīna,Laura and Jānis who are now in Drama
And teachers Eva and Guna you probably remember

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Latvian Solar Cooker Team Experiments With Sun Power

  • 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
  • 7. LATVIAN SOLAR COOKER • The we wanted to try to melt something edible CHOCOLATE:
  • 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