Question

following information to answer items 5 through 7. two groups of students conduct an experiment to determine whether lettuce plants produce more leaves under red, blue, or green light. the groups collect the following data.
group 1

color of light	number of leaves
red light	63
blue light	115

group 2

color of light	number of leaves
red light	31
blue light	72

which instrument should each group use to measure the mass of the lettuce leaves?

Explanation:

To measure the mass of lettuce leaves, a balance (such as a digital balance or a triple - beam balance) is the appropriate instrument. Balances are specifically designed to measure the mass of objects. Other instruments like rulers are for measuring length, and graduated cylinders are for measuring volume of liquids. So each group should use a balance to measure the mass of the lettuce leaves.

Answer:

Each group should use a balance (e.g., digital balance, triple - beam balance) to measure the mass of the lettuce leaves.