aluminum
アルミニウム
balloon
biotechnology
boil
chemical
chemistry
classroom
cold
collapsing
container
cool
cryopreservation
danger
demonstration
education
equipment
experiment
experimentation
extreme
fog
frosty
gas
gas law
handling
ice
ideal gas
industry
inflating
lab
laboratory
learning
lesson
liquid
liquid nitrogen
medical
medicine
nitrogen
physical
physics
pink
pouring
practical
research
school
science
scientific
state of matter
storage
teacher
temperature