July 5, 2023 by lee rowe.

Bleach a sand dollar. Remove the sand dollars from the bleach mixture and rinse with fresh water. Place sand dollars in solution. Cover the whole surface (top and bottom) of the sand dollar with the mixture using a clean sponge.

Next, make a mixture of 4 parts water and 1 part bleach in a. Soak the sand dollars in the bleach solution for about 10 minutes. In a bucket, mix 3/4 water with 1/4 bleach.

The bleach will kill the organisms inside the sand dollar and it will then be able to be permanently. Prepare a bleach solution by mixing 1 part of bleach with 1 part of water. It’s a good idea to soak your shells for a longer.

You should only allow your sand dollars to soak in the bleach for 10 minutes if you have a timer. The sand dollar skeleton, sometimes also referred to as the sand dollar fossil, or test (a test is a skeleton of an urchin) is the hard shell that is left after. Instructions first, soak your sand dollars in a tub of fresh water, changing the water every few hours for a total of about 2 days.