What's this action?
pour
What's this action?
measure
What's this action?
squeeze
What's this action?
compare
What's this action?
fill
What's this action?
add
What's this action?
observe
What's this action?
mix
What's this action?
record
What's this action?
dissolve
What's this action?
stir
What are these?
goggles
What's this?
a microscope
What are these?
gloves
What are these?
test tubes
What's this?
powder
