Question

the passage below describes a process of scientific inquiry. select the part of the passage that describes testing the hypothesis.

smithfield city’s landfill was almost full. to cut down on garbage, the city council decided to give residents compost bins for their food scraps. that way, composted food would decompose, or break down into soil, and there would be less garbage going to the landfill. one city council member, sally, knew that worms help with decomposition, so she thought the food would decompose faster if they added worms to the bins. she set up twenty different compost bins, half with worms and half without. after one month, she measured the percentage of food left in each bin. sally found that the bins with worms had less undecomposed food left, so she concluded that worms helped decompose the food scraps faster. she informed the other city council members of her results and conclusions. the city council decided to give out worms with the compost bins.

Explanation:

Testing a hypothesis involves conducting an experiment to collect data. Sally set up 20 compost bins (half with worms, half without), waited a month, and measured food left—this is the experimental test of her hypothesis (worms speed decomposition).

Answer:

She set up twenty different compost bins, half with worms and half without. After one month, she measured the percentage of food left in each bin.