As stated in the title, this is a lab on sponges and cnidarians. Students will look at prepared slides of the sponge, Leucosolenia, and prepared slides of hydra. Students will observe living cultures of hydra and make observations about their behavior. Daphnia will be used as a food source for the hydra. Feeding behavior of hydra will be observed.

Purpose: To observe the various structures of the sponges and coelenterates, and to observe the behavior of living hydra.

Materials: Prepared slide of the sponge, Leucosolenia, Methylene Blue, Prepared slide of Hydra, Weak solution of vinegar, Living culture of Hydra, Teasing needles, Living culture of Daphnia, Depression slides, Microscopes.

Your download will include a document that is ready to be copied and passed out to your students. It will include Title, Purpose, Materials List, Procedure, Follow Up Questions. It is formatted so that you can have your students write their own lab report or you can use the included student data pages. All answers are included.

You will receive both an editable Word document and a pdf version of the lab.

© Amy Brown – Science Stuff