Thursday, July 30, 2009
Tuesday, July 14, 2009
Evolution Experiment
A start population 120 coloured tooth picks. Consisting of 6 colours of 20 sticks each.
The 120 were dispersed over a 15 x15 m area.
Two student preditors collected 10 sticks each.
From the kills the field population was calculated.
The field number divided by 5, was the number off spring that were generated and added and distributed to the field population.
In the sequence
Species - Sticks
Trait - Colour
Variation - Yellow, Orange, Red, Blue, Green,Purple
Selection - Not being Predated
Reproduction
Evolution.
We had predation out strip replacement due to over efficient predation.
The photo shows the final population after 7 seasons, havested from the field.
Waves Topic Test Skills
Questions were analysed from the topic test
Analysis of a particle motion as transverse wave passes
Identify apparent bending of waves in diffraction.
Frequency ranges of devices on a frequency chart.
Analysis of f-stop , intensity inverse square law
Superposition of waves and interference.
Field of view of eyes
Amplitude and wavelength - definition
Addition of primary and secondary colours
The formation of images inverted, enlarged or reduced by lenses.
Relationship between amplitude and volume pitch and frequency of sound waves
Sound absorbtion and echo
Cones and rods and eye vision
Refleciton , Diffusing , Opaque Transulscent Trasparent
Nature of mirrors reflections
Spectral filters - Transmission spectrum graphs - Colours and spectrum
Construction of microscopes
Use of Echoes to locate surfaces.
Analysis of a particle motion as transverse wave passes
Identify apparent bending of waves in diffraction.
Frequency ranges of devices on a frequency chart.
Analysis of f-stop , intensity inverse square law
Superposition of waves and interference.
Field of view of eyes
Amplitude and wavelength - definition
Addition of primary and secondary colours
The formation of images inverted, enlarged or reduced by lenses.
Relationship between amplitude and volume pitch and frequency of sound waves
Sound absorbtion and echo
Cones and rods and eye vision
Refleciton , Diffusing , Opaque Transulscent Trasparent
Nature of mirrors reflections
Spectral filters - Transmission spectrum graphs - Colours and spectrum
Construction of microscopes
Use of Echoes to locate surfaces.
Waves Student Outcomes
Students Outcomes
1 identify that waves carry energy and not matter.
2 observe and draw longitudinal and transverse waves as seen in springs, ropes and the slow wave model machine
3. observe and feel sound waves in tuning forks and speakers.
4.compare a compression and a rarefaction.
5. perform an investigation which demonstrates that sound waves travel slower than light
6. observe and explain the phenomenon of beats.
7. listen to an electric bell ringing in an evacuated Bell Jar and explain the result.
8. Listen to sounds travelling through metal rods and wooden blocks and compare the speed of sound to that in air
9. Use spectroscopes to observe the visible spectrum and compare it to that given out a fluorescent tubes
10 list the colours of the visible spectrum and outline what makes them different
11 use the primary colours for addition of light to form the secondary colours
12. explain what the shape of shadows tells us about light.
13. label the following components of a transverse wave - crest/trough – wavelength/amplitude
14 observe and contrast incandescence,luminescence, fluorescence
15 use the light meter to measure and graph the intensity of light at various distances from a point sources. Explain an inverse square law.
16. list the main components and properties of the electromagnetic spectrum and a sources of and effect/use of each type.
17 experimentally verify the Law of Reflection.
18 determine refractive index RI of and interface and explain why refraction occurs
19 observe Total Internal Reflection in either
- Twisted perspex rod
- Pouring water spout
- Optic fiber
- Glass or perspex slab
20 account for the dispersion of a light beam in a prism
21 Distinguish between absorption, reflection, refraction and scattering o light and identify everyday situation where each occurs.
22 distinguish between magnification and resolution by observing a colour magazine photo through a microscope.
23 explain how different objects have different colours
Realize that all emr travel at the same speed 3E8 v=fLambda
25. for two difference types of EMR list material for which they are transparent/opaque mention translucent.
26. give two examples of the way EMR is used in Technology and explain how tat least one of the mas contributed to the development of science.
1 identify that waves carry energy and not matter.
2 observe and draw longitudinal and transverse waves as seen in springs, ropes and the slow wave model machine
3. observe and feel sound waves in tuning forks and speakers.
4.compare a compression and a rarefaction.
5. perform an investigation which demonstrates that sound waves travel slower than light
6. observe and explain the phenomenon of beats.
7. listen to an electric bell ringing in an evacuated Bell Jar and explain the result.
8. Listen to sounds travelling through metal rods and wooden blocks and compare the speed of sound to that in air
9. Use spectroscopes to observe the visible spectrum and compare it to that given out a fluorescent tubes
10 list the colours of the visible spectrum and outline what makes them different
11 use the primary colours for addition of light to form the secondary colours
12. explain what the shape of shadows tells us about light.
13. label the following components of a transverse wave - crest/trough – wavelength/amplitude
14 observe and contrast incandescence,luminescence, fluorescence
15 use the light meter to measure and graph the intensity of light at various distances from a point sources. Explain an inverse square law.
16. list the main components and properties of the electromagnetic spectrum and a sources of and effect/use of each type.
17 experimentally verify the Law of Reflection.
18 determine refractive index RI of and interface and explain why refraction occurs
19 observe Total Internal Reflection in either
- Twisted perspex rod
- Pouring water spout
- Optic fiber
- Glass or perspex slab
20 account for the dispersion of a light beam in a prism
21 Distinguish between absorption, reflection, refraction and scattering o light and identify everyday situation where each occurs.
22 distinguish between magnification and resolution by observing a colour magazine photo through a microscope.
23 explain how different objects have different colours
Realize that all emr travel at the same speed 3E8 v=fLambda
25. for two difference types of EMR list material for which they are transparent/opaque mention translucent.
26. give two examples of the way EMR is used in Technology and explain how tat least one of the mas contributed to the development of science.
Monday, July 13, 2009
Wednesday, July 8, 2009
Monday, July 6, 2009
Homework
1. Define "Species" from your notes
2. Define "Species" from the internet.
3. Give and example of variation of trait within a species
4. Watch this video and report the Species, trait, variation, selection
5. Define "Biodiversity" and investigate how have many species is good for Evolution.
6. What practical way can you help improve biodiversiy.
7. What is a fossil, and find out how you can tell how old it is was.
2. Define "Species" from the internet.
3. Give and example of variation of trait within a species
4. Watch this video and report the Species, trait, variation, selection
5. Define "Biodiversity" and investigate how have many species is good for Evolution.
6. What practical way can you help improve biodiversiy.
7. What is a fossil, and find out how you can tell how old it is was.
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About Me
- drhill
- I come from a Science family: My father Geoffrey Hill was Australia's first computer programmer on CSIRAC the fourth computer in the world. He is credited with invention of Computer music and the development of “Interprogram” a language before Basic. My PhD is in Atomic and Molecular Physics. I have researched the activated oxygen layer above the ozone layer, and 'Assigned' the world's smallest molecule. At the University of Toronto I researched high power UV lasers. I have specialized in automation in fibre optics. This developed into research in Machine Intellect and Robots. I have enjoyed work as an Explainer with Questacon and my time as a part-time soldier. I currently teach High School Science at Epping Boys’ High.