Question

in science class, maria observes a white - colored cut flower. she sees that the petals turn red when the flower is sitting in a vase that has red - colored water. she forms a hypothesis that the color reaches the flower through the stem. what should maria do to confirm the hypothesis?
a. she should repeat the experiment with the same type of flower and photograph the changes over time.
b. she should ask her science teacher about the flower to confirm whether her hypothesis is correct.
c. she should try the experiment with a potted plant with roots and observe any color changes.
d. she should repeat the experiment with a different species of plant and photograph the changes.

Explanation:

To confirm a hypothesis, repeating the experiment under the same conditions helps to verify results. Option A repeats the experiment with the same type of flower, which is best for confirming if the color reaches the flower through the stem as hypothesized. Options B relies on teacher - input instead of experimental verification, C changes the experimental subject to a potted plant with roots which may introduce new variables, and D changes the species of the plant which also introduces new variables.

Answer:

A. She should repeat the experiment with the same type of flower and photograph the changes over time.