In this mollusks worksheet, students complete a crossword puzzle given 15 clues about the structures of mollusks, the characteristics of mollusks and types of mollusks.
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Simple Animals: Sponges, Jellies, and Octopuses
A video focusing on the evolutionary history of simple animals reveals some amazing facts. Did you know that some deep-water sponges can live to be more than 200 years old? The narrator of the film explains what simple animals means,...
12 mins 9th - 12th Science CCSS: Adaptable