英文關鍵字
abstract
atom
ball
bass
beam
black
blue
boot
bright
charge
dark
education
electric
electricity
electronics
energy
experiment
generator
glass
globe
glow
glowing
ground
illumination
isolated
lamp
light
lightning
luminescence
music
neon
nuclear
physics
pink
plasma
power
purple
ray
reaching
red
school
science
scientific
scientist
spark
speaker
sphere
tech
technology
touch
touching
voltage