Sheep’s Eye Dissection

Last week we dissected a sheep’s eyeball to learn about the structure and function of the eye.  Some of you have been working on a slideshow that demonstrates what you have learned about the eye. If you haven’t started on your slideshow you can follow this link to a Voicethread and comment on the photographs, “Sheep’s Eye Dissection”.

There was an interesting article this week about an African fruit that has ‘structural color’, instead of pigments, that give it the ‘brightest color in nature’. The Pollia condensata, or marble fruit, has no nutritional value, but is full of seeds and keeps it’s color for decades.

Welcome Back – Term 3!

This is the link to our Elluminate session on Tuesday 19th July during periods 5 and 6:
https://sas.elluminate.com/m.jnlp?sid=2007026&password=M.43B95D23EED469E69F918824E6B110

You will need headphones, a microphone and an Internet connection. Please observe the appropriate online protocols and enjoy this session.

This week I will be away from school, attending the 6th World Environmental Education Congress in Brisbane. I attended the same conference four years ago in Durban, South Africa, but this time I will be presenting a workshop with researchers from RMIT University, about the Education for Sustainability work we do here at Hawkesdale P12 College. While I am away Mr Becker will be taking my classes.

Year 7 students will be doing some practial experriments with light and sound – you may like to make a musical instrument at home, bring it into school and explain how it works.

Year 8 students will be starting a unit of work on Electricity. You will learn about conductors, resistors and insulators, series and parallel circuits, volts and amps and circuit diagrams. When I get back you will be able to make a torch from common household materials – a cardboard tube, batteries, aluminium foil, globe, paper clip, wires and sticky tape.

Year 7 Transferring and Transforming Energy – Light and Heat

light_painting

Image Source

Learning Intention: Students will understand the transfer and transformation of heat and light, including how energy is wasted.

Success Criteria: Students will be able to describe how different types of energy (chemical, electrical etc) can be transformed into heat and light. They will distinguish between conduction, convection, absorption, reflection, transmission and radiation.

  • What does luminous, incandescent and flourescent mean?
  • How do bio-luminescent organisms (glow-worms, some deep sea fish and phosphorescent algae) produce light?
  • What makes a rainbow?
  • What are polarised sunglasses?
  • Why can’t you see through tinted windows?
  • How do some animals see in the dark?
  • Why can’t anyone hear you scream in space?
  • What is a wave?
  • Why can’t humans hear sounds that some animals can? (a dog whistle for example)