Year 9 Homework
Semester 2
Term3:
Three Tasks
Task 1 – Due Thur/Fri Wk 3 – Reaction Types
Back yard swimming pools require regular chemical adjustments. Research each of
the statements below:




Identify the range of pool chemicals used, and their effect on the water
Discuss how rain water and sunlight can affect the pool chemistry
What is the correct pH for a swimming pool, and why is it important
Describe the possible chemical hazards of maintaining a pool.
You may present your research findings in one of the following formats: an A3 sized
poster, a brochure or a digital presentation of your choice.
The following sites will help you get started on your research:
http://www.ausgrid.com.au/~/media/Files/Ways%20to%20save/Energy%20efficiency%20broch
ures/Ausgrid_Pool_Spa_201213.pdf
http://www.flasolar.com/pdf/water_chemistry_for_swimming_pools.htm
http://www.alphapoolservice.net/blog/entry/top-10-things-that-negatively-affect-pool-waterchemistry
http://www.smh.com.au/nsw/sydney-man-severely-injured-mixing-chlorine-for-pool-2014011130nl3.html
Task 2 – Due Thur/Fri Wk 6 - Ecosystems
Research 5 threatened species include both plants and animals. For each species find:
•
•
•
•
some interesting facts
a picture
show on a map where it can be found
state the main reason for its threatened status.
Present your finding as an A3 sized poster or a digital story (max length 3 minutes).
Examples and help for creating a digital story.
https://www.youtube.com/watch?v=3HYsivZTQ3Y
https://www.youtube.com/watch?v=a1f-_FXgJZM
Task 3 – Due Monday 31st August Wk 8 – Research Project 20% of Semester 2
Sustainability at home – energy use, waste production and attitudes. A detailed
assignment guide sheet will be handed out in class.
Term 4:
Two Tasks
Task 4 – Due Thur/Fri – Wk3
In preparation for your yearly exam, create an A4 sized mind
map on each of topics below:
•
•
•
•
Heat, Light and Sound
Reaction Types
Ecosystems
Electrical Energy
Mind maps should include the information found in your Unit outline.
Task 5 – Due Thur/Fri - Wk 6 – Electrical Energy
Electromagnetism explains why auroras only happen near the north and south poles.
Research auroras and find:
•
•
•
•
Images that show the different colours that are displayed in auroras
The difference between aurora borealis and aurora australis
The particles that cause auroras, where these particles come from and why they
light up in the atmosphere
A diagram or animation that explains how electromagnetism causes the particles
to funnel towards the poles.
Present your research as an A3 sized poster or create a digital documentary max
length 5 minutes. (PC: moviemaker & Greenscreen; Mac/iPad: iMovie & Green
screen)
http://pwg.gsfc.nasa.gov/polar/telecons/archive/PR_E-PO/Aurora_flyer/auroraflyer_p2.doc.pdf
https://www.youtube.com/watch?v=1MI3YDGgtN4
Making a documentary:
https://www.youtube.com/watch?v=JC27WZAuv94
https://www.youtube.com/watch?v=LWAHxtpPp24
https://www.youtube.com/watch?v=us-rNaWBkEY
Extension – for extra credit
Research one disease that is caused by either (i) bacteria (ii) fungi or (iii)viruses.
Include the following:
 What causes the disease?
 What are the symptoms?
 How is it spread?
 Where in the world is it prevalent?
 Is there a cure?
Add any information that is useful and informative. Present findings as an information
brochure.