backyard science Quiz
Question Number 1
what 2 chemicals are used to make a volcano eruption?
A. salt and sugar
B. bicarbonate soda and vinegar
C. salt and chemical x
D. water and salt
E. water and soda
F. water and sugar
Question Number 2
what force is used in a pulley?
A. mechanical force
B. elastic force
C. muscular force
D. solar energy
E. frictional force
F. heat energy
Question Number 3
what is vinagar?
A. water
B. chemical
C. acid
D. handwash liquid
E. juice
F. soap water