47. Which is the fairest way to find out if salt
water boils faster than fresh water?
A
B
49. A science class went on a field trip and made
a graph of the different kinds of insects that
they saw. Which group of insects was seen
the most?
C
A
B
D
C
D
48. During a study of the human body, students
are asked to observe the back of their hands
and record their observations. What units
would be most appropriate for measuring the
width of their hands?
a. Grams
b. Centimeters
c. Liters
d. Meters