The document discusses different types of invertebrate animals found on land and in oceans. It describes insects as having a three-part body and six legs. Spiders are described as having eight legs and two main body parts. Jellyfish and anemones are introduced as cnidarians that can sting. Mollusks are described as having soft bodies and sometimes one or two shells. Cephalopods like octopuses and squid have no shells and use other defenses. Crustaceans are described as having a hard outer covering and molting. Echinoderms move via tube feet, with sea stars having five or more arms and sea urchins being covered in spines.

3. LAND INVERTEBRATES I nvertebrate animals have a shell to protect their soft bodies. Some have a hard outside covering called an exoskeleton Spider Snail beetle Wasp

4. Arthropods:insects Beetle Grasshopper Grasshopper Ant Butterfly Wasp Ladybird Dragonfly

5. What is an insect? An insect has a hard outer skeleton It has a three part body: head, thorax and abdomen It has six legs An insect has antennae on his head. Most insects have two pairs of wings. Not all insects fly.

7. Arachnids: spiders They have eight legs They have two main parts They lay eggs Their skin is covered with tiny hairs They make silk using spinnerets on the end of their abdomens

8. OCEAN INVERTABRATES Cnidarians Jellyfish and anemones are cnidarians They have been around for millions of years, they can sting but they are very beautiful. Jellyfish can only move vertically and are unable to swim , they rely on currents to move.

9. MOLLUSKS They have soft body with no bones. They have tentacles for feeling and seeing. They can have one shell: cone snail,limpet Cone snail Limpet

10. Mollusks with two shells When they open their shells, water flows over their gills. The shell is closed tight for protection Oyster Scallop Clams

11. Mollucks with no shell: Cephalpods They have to use other protection like tasting bad to predators, coloration or squirting purple ink. They move on a “foot” like a snail´s foot Octopus Cuttlefish Squid

12. ARTHROPODS Crustaceans They have a hard outside covering. As they grow bigger, they have to crawl out of their old skeletons and grow new, bigger ones. Crab Shrimps Lobster

13. ECHINODERMS They have a hard outside covering. They move around on tiny tube feet. Sea stars have Sea Urchins are five or more arms covered with spines.

14. Creada la presentación Por MªÁngeles Cola Para segundo ciclo de primaria bilingüe Science: INVERTEBRATES