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’s experiment tests if rooting hormone benefits root growth, so the hypothesis states that using rooting hormone (with other conditions) will increase root growth in shrub cuttings.

Answer:

If shrub cuttings are dipped in rooting hormone, covered with a clear dome, and placed in direct sunlight (along with potting soil and equal watering), then they will exhibit greater root growth compared to cuttings without rooting hormone in partial shade.