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Science of Ocean Life and Animals Week two September 1st and 2nd Science Strand: living things Strand unit: plants and animals. Learning objective: To learn about, experiment with and report on turtles, octopus, dolphins and seals Resource list: Non fiction and fiction books based on the ocean. camera Toy sea creatures Plastic bottle Access to you-tube Videos: ‘wiggle like an octopus wrap’ spoons Card/paper Lollipop sticks Glue Bucket water New Vocabulary! Mollusk Soft, underwater invertebrate without legs that have shells for protection. Gills: An organ used for breathing underwater in sea creatures Exoskeleton A hard covering on the outer body of a sea creature like a shell Fins: Wing-like organs on some creatures used for swimming. Tentacles: The arms on some under water creatures used for grabbing objects and for moving. Scales: The thin, flat plates that overlap and cover and protect the skin of fish and reptiles. Day one: Display a chart all about turtles. Assess children’s prior knowledge of turtles. Gather the basic information about turtles. Facts about turtles: Sea turtles are reptiles. They are cold blooded. They cannot survive in ocean water that is too cold. They migrate to warmer waters when temperatures drop. Facts about turtles: Sea turtles have four flippers. They have sharp jaws to tear food apart. They eat seaweed, crabs and fish. Their babies hatch from eggs. Every year the female turtle climbs onto the beach. They use their front flippers to dig nests and can lay up to 100 eggs. After laying their eggs they cover them with sand and go back to sea. New Vocabulary: Reptile Migrate Flipper 1. Sea turtle eggs 2. Turtle hatching 4. Adult turtle 3. Baby turtle Once the children have learned about the life cycle and know it, Construct the following in art: The children complete the life cycle onto a 3d shell template to make a turtle in art. Once the children have copied the life cycle on to the shell, glue it on to the body of the turtle. Day Two. Day two: vocabulary check: Write the new vocabulary from day 1 onto lollipop sticks. Have the matching definitions printed. Each child pulls a stick. The teacher will then read a definition and the child must say if it is the correct definition. If it is not, the child is out! Experiment/Octopus Investigation: Explore how octopus shoot ink and why, how does it protect them? You will need: Toy octopus Plastic see through cup Red ink/food dye,paint dropper Water Experiment/Octopus Investigation: The children will observe the toy octopus at the bottom of the glass of water. We will explore how we can see the octopus. We will discuss why octopus shoot ink at predators. The teacher will drop some ink/paint into the water. What happens? We will explore how we cannot see the octopus when the ink is in the water, like in real life it stops the predators from seeing the octopus. Let’s think! HOW do octopus stay safe from predators? Draw a picture of your experiment: Draw a picture of what happened after you put the dye in: Record what this experiment tells you about octopus and how they protect themselves: Mammals : Dolphins are mammals. As all mammals, dolphins nurse their young. 2. Dolphins can swim up to 260 m. below the surface of the ocean. However they are mainly shallow divers as they need to reach the surface to breathe. 3. Dolphins can stay up to 15 minutes under water. Mammals : . 4. Dolphins use a technique called echolocation. This technique uses the same principles of a radar, and it is used to find food and navigate. 5. Dolphins are social beings. Dolphins live in groups and cooperate among each other for activities like getting food and calf-raising. Can have are : Dolphin Ears Experiment You will need: A cup Water Metal spoons Plastic bottle( end cut off) Teacher will explain echolocation to the children and how dolphins use this to hear and communicate. Teacher bangs two spoons together and ask children what they hear. Then fill a large bucket with water and cut off the bottom of the bottle. Children take turns to bang their spoons together under water and listen with the bottle to the sound. This is echolocation! Dolphin Ears Experiment What is echolocation? Echolocation is how dolphins communicate and find food and objects in the ocean. Dolphin Ears Experiment With your partner, bang the two spoons together under water, then place the cut off end of the plastic bottle in the water and listen through the top of the bottle. What do you hear? Record your experiment. Questions and thoughts... Seals Seals are ocean mammals who live along the seashore. They hunt for food in the water. They eat fish, squid, crabs and squid. They have big round eyes to help them see under water. Their flippers make them fast swimmers. They move very quickly in the water and dive to get their prey. They are very slow on land and flop on their bellies to get around. They have blubber and fur to keep them warm. Sharks and polar bears are predators of the seal. Baby seals are called pups. There are 33 types of seal. Seals can stay under water for 30 minutes before surfacing for air. My Report on Seals Seals: