answer
arithmetic
background
bar
breakthrough
bulb
business
cartoon
chart
clipart
concept
conceptual
creative
creativity
design
education
energy
equations
eureka
flat
glowing
graph
graphic
idea
illustration
incandescent
innovation
inspiration
intellect
intelligence
invention
isolated
knowledge
light
math
mathematics
metaphor
power
research
school
science
solution
statistics
style
white
writing
yellow