Question

while the pennies are drying, put the paper clips in the bowl of solution. let them soak until their color changes from silver to copper. it may take an hour or more, so be patient! finally, rinse off the paper clips with water. place them on a paper towel to dry. which step comes after removing the pennies from the solution? add the paper clips to the bowl. rinse the paper clips with vinegar. mix the paper clips with salt.

Explanation:

The left - hand text says "While the pennies are drying, put the paper clips in the bowl of solution". So after removing the pennies (and while they dry), the next step is to add the paper clips to the bowl. The other options (rinsing with vinegar, mixing with salt) are not the immediate next step as per the given instructions.

Answer:

A. Add the paper clips to the bowl.