aluminum
アルミニウム
analysis
analyzing
archimedes
background
chemicals
chemistry
college
concept
copper
cork
dense
density
displacement
education
experiment
float
glassware
gravity
industry
iron
lab
laboratory
lead
mass
materials
objects
physical property
physics
plastic
properties
research
school
science
sink
solids
specific gravity
study
substance
testing
university
volume
water
weight