Ascientist is studying a volcano. she claims
that the lava that comes out of the volcano is a
liquid. she wants to make an argument to
support her claim. what question should she
ask to her collect evidence for her
argument?

a. does the lava have a definite volume?
b. is the lava made of particles that move
around?
c. does the lava have a definite volume and
does it flow freely?
d. does the lava have a definite volume and
particles that are very far apart?