Who lives in the Ocean?

1. Who lives in the Ocean? By: Claudia M. Garza

2. Second Grade TEKS Objectives: • (2.8) Science Concepts. The student distinguishes between living organisms and nonliving objects. (A) identify characteristics of living organisms. • (2.9) Science Concepts. The student knows thatliving organismshave basic needs. (A) identify the external characteristics of different kinds of plants and animals that allow their needs to be met. (B) compare and give examples of the ways living organisms depend on each other and on their environments.

3. Resources Used: • http://www.enchantedlearning.com/subjects/ocean/

4. First, Where are the Oceans? There are four oceans that are connected to one another: • Pacific Ocean • Atlantic Ocean • Indian Ocean • Artic Ocean

5. Oceans cover 70% of the Earth’s surface.They contain 97% of the Earth’s water supply.

6. Now let’s see who lives in the ocean: Fish live in the Ocean • Fish breathe using gills. Water goes in through the mouth and out through the gills, which take oxygen from the water. • Most fish swim by moving their tail (also called the caudal fin) left and right.

7. Blue Sharks live in the ocean • The Blue Shark is a sleek, slender, fast-swimming shark. • It has blue skin, 5 gill slits, two dorsal fins, an anal fin, no fin spines, and nictitating eyelids (which protect the eyes when the shark is hunting). Its elongated caudal fin (tail) provides swimming power as it moves side-to-side. Blue Sharks grow to be up to 12.5 feet (3.8 m) long. • The Blue Shark is found worldwide, but is endangered due to over-fishing. • The Blue Shark's teeth are pointed and serrated. This enables the shark to catch slippery squid and fish, the mainstay of this carnivore's diet.

8. Humpback whales are extremely acrobatic and sing long, complex songs. • Humpbacks are very social and often travel and hunt in groups (pods). • Humpback whales are filter feeders that eat tiny crustaceans, and small fish). • Humpbacks swim by moving their tail (called flukes) up and down. Fish swim by moving their tail left and right. Humpback Whales live in the ocean

9. Orcas live in the ocean • The Orca (commonly known as the Killer Whale) is a toothed whale, the largest member of the dolphin family. • They live in small, close-knit, life-long pods. • Orcas are efficient hunters who find their prey at the surface of the water, eating fish, squid, sharks, birds, seals, sea turtles, and even other whales. • Like other whales, orcas swim by moving their tail (called flukes) up and down. Fish swim by moving their tail left and right.

10. Octopuses are solitary, eight-armed animals that live on the ocean floor. • An octopus has a soft body and eight arms. Each arm has two rows of suction cups. If it loses an arm, it will eventually re-grow another arm. It has blue blood. An octopus has an eye on each side of its head and has very good eyesight. An octopus cannot hear. • Octopuses eat small crabs and scallops, plus some snails, fish, turtles, crustaceans (like shrimp), and other octopuses. They catch prey with their arms, then kill it by biting it with their tough beak, paralyzing the prey with a nerve poison, and softening the flesh. They then suck out the flesh. Octopuses hunt mostly at night. Octopuslive in the ocean