ASL What Are Mollusks?

Подробнее о видео

Do you know what a mollusk is? If you said snail, you'd be right, but not fully. In this video for kids, you'll learn that snails are just one member of the Mollusca phylum. In fact, you'd discover that snails and clams and octopuses are RELATED! They're all mollusks of some kind. There are three main groups—gastropoda (snails), bivalvia (clams, oysters, and mussels), and cephalopoda (squid and octopuses).

Gastropoda is the most diverse group. These are the snails, and there are tens of thousands of them. Almost all snails grow shells in one spiraled piece. But there are some that stopped growing shells; these are what we call slugs! Bivalvia have two shells instead of one, which is why clams, oysters, and mussels are part of this group. Cephalopods only live in salt water, which is why you wouldn't find squid and octopuses living on land. They don't have shells either as most other mollusks do. This group is fast, larger, and more intelligent than the other two groups.

Scientists have discovered about 100,000 species of mollusk all over the world, but there are still many more out there to be found. There are probably tens of thousands of undiscovered mollusks! These animals are either terrestrial (on the land) or aquatic (in the water). Most live in the salty ocean water, but some live in freshwater. Mollusks are invertebrate animals, which means they do not have a backbone and are cold-blooded.

We hope you and your student(s) enjoyed learning about these unique invertebrates! If you want to learn even more, head over to our website and download one of our many lesson plans about animals, full of activities, worksheets, and more!



Thank you for watching and learning with us! We’re constantly releasing new content and videos, so click that “Subscribe” button and you’ll get notified.

What you will learn in What Are Mollusks?:
0:00 Introduction
0:26 Species of mollusks
1:37 Gastropoda mollusks
2:02 Bivalves and cephalopods
2:46 Review of the facts

Find and Follow Us Online:
Facebook:
Instagram:
Pinterest:
YouTube: @LearnBright
Website:

*Teachers and Parents! Did you know? In addition to these great videos, we have also created a library of high-quality and engaging lessons for your elementary aged student(s). Visit us, sign up for a free account, and instantly you'll have access to thousands of lesson plans, learning materials, teaching instructions, activities, and assignments that your kids will really enjoy! We hope to see you soon!

Browse our entire collection of Science lesson plans:

#asl
#mollusks
#phylum
#mollusca