2005 EXPO AICHI(82)
$user_lang->ForceAndMotion(188)
$user_lang->Electromagnetism(149)
$user_lang->WavesAndParticles(67)
$user_lang->Light(133)
$user_lang->Element(10)
$user_lang->ReactionRate(47)
Acid and Base(20)
$user_lang->Material(134)
Change of state(33)
$user_lang->NutritionAndDigestion(3)
Circulation(5)
Breathing(3)
$user_lang->Excretion
$user_lang->Reproduction(1)
$user_lang->Gene(14)
$user_lang->StimulusAndResponse(5)
$user_lang->Photosynthesis
$user_lang->TheStructureOfPlants(35)
$user_lang->TheStructureOfAnimals(23)
$user_lang->Minerals(10)
Atmosphere(7)
$user_lang->Marine(2)
Celestial body(19)
$user_lang->SolarSystem(19)
$user_lang->EarthsHistory(30)
$user_lang->Mathematics(3)
$user_lang->Robot(12)
$user_lang->Toys(12)
$user_lang->Craft(36)
etc.(14)