Year 7 Geography Homework

Year 7 Geography homework

Coral Reefs

This homework is split into three sections:

·  What are coral reefs?

·  Why are coral reefs under threat?

·  How can coral reefs be conserved?

You have two weeks to complete these tasks.

You will need the following website to complete the homework. If you do not have access to the Internet ask your teacher for a copy of the information.

www.coralfilm.com/about.html

Task one: What are coral reefs?

An overview

1.  When it comes to food, why are corals unique?

2.  How do corals get their food (name two sources)?

3.  Corals are invertebrates. What does this mean?

4.  What are the two main types of coral?

5.  What ‘environment’ do corals need? (Try to give more than one point.)

6.  List four threats to coral reefs.

Ocean planet and all about coral reefs

7.  What percentage of the Earth’s surface is salt water?

8.  Where is the deepest part of the ocean?

9.  How long is the Great Barrier Reef?

10.  Where on the world are most species of coral found?

Life on coral reefs and types of coral

11.  Give five forms of life on coral reef.

12.  How do herbivores prevent the coral from being smothered?

13.  How are the Potato Cod and the Cleaner Shrimp linked together?

14.  What are the three types of coral reef?

15.  Give an example of an atoll reef.

Symbiotic relationships

16.  What symbiotic mean?

17.  What are zooxanthellae?

18.  Why are corals dependent on zooxanthellae?

19.  What gives coral its colour?

20.  What do ‘reef-building’ coral need?

Mark scheme: One mark for each question. Although your teacher will be looking for explained answers!

Task two: Threats to coral reefs

Use the website to extend the spider diagram (i.e. say how each of the points is a threat to coral reefs).

Mark scheme: This is marked out of 15. You’ll get three marks for each of the five threats (as long as you explain them fully!

Task three: Conserving coral reefs

The website will give you some ideas here, but you may need to look elsewhere.

You need to come up with a plan to conserve coral reefs. You should think of three sections:

·  Local – What can the people who live near coral reefs do to help?

·  Regional – What can governments do help look after coral reefs?

·  Global – What can the world do to conserve coral reefs? (Think about your own role!)

Mark scheme: marked out of 15. So there will be 5 marks for each of the sections. Your teacher will be looking at how well you link the problems that coral reefs face with the solution.

PLTS

Independent enquirers:

·  Explore issues, events or problems from different points of view.

Extra

Why not watch ‘Finding Nemo’ and try to identify the different parts of the ecosystem.