What is an ecosystem?

Important Vocabulary• Ecosystem- A community and it’s physical

environment together• Food Chain- The movement of food energy in

a sequence of living thing• Producer- A living thing, such as a plant, that

can make it’s own food• Consumer- A living thing that can’t make its

own food and must eat other living things•

Sharks in the ECOSYSTEM

Ocean Food Chain

Why are sharks so important?

• Sharks are important because they are the top predator in the ocean

• Why does that matter?– Sharks regulate the quantity and health of other marine

life, helping to keep fish stocks in the ocean healthy. They tend to feed on weak, old and unhealthy fish, which stops the spread of disease among fish populations.

– When the apex predator is made fewer it is called “top down effect”

– Why and how are sharks being killed?

Why are sharks so important to the Ecosystem?

http://www.imdb.com/video/wab/vi1704592409/

What would the effect if the shark was removed from the

food chain?

1. Sharks were around way before dinosaurs, around 400 million years ago. (The dinosaurs appeared in the Triassic, 245 million years ago).

Top 10 shark facts

2. Sharks are fish. Some of them are Very BIG fish. Just like other fish, they have gills (some of them have very big gills).

Top 10 shark facts

3.Sharks come in a range of sizes from the 6 inch as an adult Dwarf Lanternshark to the 40+ft Whale Shark

Top 10 shark facts

4.Whereas most fish are bony, sharks have skeletons made from cartilage - like your nose. Cartilage is strong, flexible and light.

Top 10 shark facts

5.Sharks keep several rows of replacement teeth. When they lose a tooth, another one moves into place.

Top 10 shark facts

http://www.youtube.com/watch?v=_DbCcMbOL3M

6.Most sharks are cold-blooded like other fish. But some sharks like the Great White are warm-blooded, like humans and other mammals - they can regulate their temperature.

Top 10 shark facts

7.Baby sharks are called pups. Some sharks lay eggs. Other sharks keep their eggs inside. And yet other sharks grow baby pups inside them, more like mammals. Wow all sharks are not the same!

Top 10 shark facts

8.

Remora or sharksucker fish attach themselves to sharks and hitch a ride and eat their leftovers.

Top 10 shark facts

http://www.youtube.com/watch?v=e4xrdeagyYM

9.Sharks are fish so they have tail fins which move from side to side. Unlike Whales which are mammals which have flukes which move up and down.

Top 10 shark facts

10.Megalodon is the biggest prehistoric shark to have been discovered at 60+ feet long.

Top 10 shark facts

http://www.youtube.com/watch?v=Spo8vkrJFRo

1. Work quietly2. Take turns and share the group materials (use

the jewel of the month character skills)3. Keep your work area clean and orderly4. Use your time wisely and complete all work5. Remain in your work area unless you have

permission from the teacher to move**Group leader responsible to make sure the area is cleaned up and any work is turned in (if needed)

Cooperative Group Rules

Group RotationsResearch Group- You will choose a specific type of shark and use the laptop to answer the questions about your breed of shark. (Glue your sheet into your notebook)Vocabulary Group- Write each vocabulary word or definition on the shark cut-out (use the info sheet as your guide). Cut out and glue the sharks in to your science notebookCraftivity/Game/Experiment- Play the game “Bites and Pieces”. If game is completed you can play again or you can use the guide to practice drawing sharks in your notebook.Science Literature- Use the books about sharks and write a shark fact in each of the bubbles. Put them in a stack and staple the top of the stack in your notebook.

Group Rotations Tuesday Wednesday Thursday FridayResearch

Craftivity

Vocabulary

Books

DAILY SHARK BITESTuesday- http://www.youtube.com/watch?v=eDzbds1p6i4Wednesday- http://www.youtube.com/watch?v=n-t2ayKadD0Thursday- http://www.youtube.com/watch?v=5Q3FbedESIgFriday- http://www.youtube.com/watch?v=0FizoaMrzDQ