Question

chloe reads that given the correct conditions, cuttings from certain plants will form roots along the stem, enabling a new plant— identical to the parent plant—to grow. chloe wants to investigate whether rooting hormone is beneficial or detrimental in this process. she takes cuttings from a shrub. for group 1, she places some shrub cuttings in potting soil in partial shade. for group 2, she dips some shrub cuttings in rooting hormone, places them in potting soil, covers them with a clear dome, and places them in direct sunlight. she waters the groups equally. she pulls up some cuttings after 3 days and again after 6 and 9 days to observe and measure root growth. write a hypothesis for chloe’s experiment.

Explanation:

A hypothesis predicts the effect of the independent variable (rooting hormone) on the dependent variable (root growth). Chloe is testing if rooting hormone helps or harms root formation in shrub cuttings. A clear hypothesis states this relationship.

Answer:

If shrub cuttings are treated with rooting hormone, then they will exhibit greater root growth (or less root growth, depending on the predicted effect) compared to cuttings without rooting hormone, when grown under their respective conditions.

(Note: A more specific version could be: "Shrub cuttings dipped in rooting hormone will have increased root growth compared to cuttings not treated with rooting hormone, when observed over 3, 6, and 9 days.")