Question

(24.) select all tools that are used to measure mass.
a. meter stick
b. caliper
c. triple - beam balance
d. digital clock
e. scale
(25.) select all statements that represent a qualitative observation.
a. the graduated cylinder contains 40ml of bleach
b. its hot and humid outside
c. the humidity level reads 90.2%
d. the piece of gold weighs ninety - seven pounds
e. the car was made of metal

Explanation:

For the first question, a triple - beam balance and a scale are used to measure mass. A meter stick measures length, a caliper measures length or diameter precisely, and a digital clock measures time.
For the second question, qualitative observations are non - numerical. "It's hot and humid outside" and "The car was made of metal" are qualitative as they describe qualities rather than quantities. "The graduated cylinder contains 40mL of bleach", "The humidity level reads 90.3%", and "The piece of gold weighs ninety - seven pounds" are quantitative as they involve numbers.

Answer:

(24) C. triple - beam balance, E. scale
(25) B. It's hot and humid outside, E. The car was made of metal