Question

1. which of the following tools is best to use to measure the mass of an object?

a. graduated cylinder
b. beaker
c. thermometer
d. balance scale

1. which of the following would be best done using repeated observation rather than an experiment?

a. determining the average number of times during a week in may that a group of bees visits flowers
b. determining whether a diet that includes honey every day will reduce allergies
c. determining whether a beehive is stronger than a wasp nest
d. determining which type of flower gives off the strongest scent

Explanation:

• For question 7: A balance scale is used to measure mass. A graduated cylinder measures volume, a beaker is mainly for holding and mixing liquids, and a thermometer measures temperature.
• For question 8: Repeated observation is best for simply counting natural - occurring events like how many times bees visit flowers. Experiments are better for testing cause - and - effect relationships as in options B, C, and D.

Answer:

1. D. Balance scale
2. A. Determining the average number of times during a week in May that a group of bees visits flowers