Reflection

Go to the link to see the Class powerpoints and worksheets

Refraction

Can you help Professor Sangkot? Explain why they might not be catching the fish - hint it's to do with refraction.

KEYWORDS:
Refraction        dense        incidence         ray           medium            angle

Here are some resources to help you.
Refraction resources

Keywords - Light and Sound

Light
Luminous - source of light (produces it's own light)
Non-luminous - an object is un-able to produce its own light or just reflect the light.

Ray- the thinnest possible form of light which we can still see.

Beam - collection of rays 

Incidence ray

Reflected ray

angle of incidence

angle of reflection

Normal line

Medium 

refraction

ray of refraction

ray of emergence

angle of refraction

angle of emergence

dense/ density 

Sound

frequency - the number of waves (vibrations) in a second

Hertz (Hz) - measurement of frequency

pitch - high or low pitch - what you hear

loudness - volume of sound measured in decibels (dB)

amplitude - the height of the sound wave showing the loudness

Decibel (dB) - unit of loudness

Wavelength - Distance between matching points on the wave (m)

Longitudinal - Vibration at right angle to direction of travel

Transverse - Vibration parallel to direction of travel

SMART Goals

:Goal: What do you want to achieve this semester?

	Questions	Responses
Specific	·   Who? What? When? Where? Why?
Measurable	·  How many? ·  How much? ·  How often?
Achievable	·  Is it achievable by me now?
Relevant (and Realistic)	·  Is it important to what you want to ultimately achieve?
Timed	·  By when?

Potential resources? (Identify 3-5)

How will you check your progress? (Identify 3-5 measures)

What actions do I need to schedule in my diary?  (daily, weekly, monthly?)

Freezerays

Interactive light models. 

Light models

Sounds Amazing

This is a great website resource from the University of Salford for sound.
Sounds amazing self study resources

Welcome to grade 7 Science - Unit 1

The Wonders of Light and Sound. 

Statement of Inquiry

Enhanced understanding of relationship of the transformation of energy has driven the development of scientific and technical innovation.

Inquiry Questions
Factual How does light and sound travel?
Factual What are the differences and similarities between how light and sound travel?
Factual What are the properties of light and sound?
Factual How do we perceive light and sound?
Conceptual What is the relationship between the behaviour of energy and how we transform it into different uses?
Conceptual What drives the innovation of light and sound technology?
Conceptual How has enhanced understanding of energy transformation driven technological advancements?
Debatable Should we continue to advance light and sound technology?
Debatable What limits the development of light and sound technology?
Debatable Do technological advancements cause more harm than good?

Weekly Planner. 

Week	Topic	Tasks
1 (11th August	Introduction and setting goals	Pre test and WIL, WILK, WIL – creating debatable, conceptual and factual questions for the unit.
2 (18/8-22/8)	Introduction to light and sound. Where does light come from? How does light travel? How is sound produced? Can sound be produced without a vibration? What are the differences between how sound travels?	Starter video – Sound multi station to investigate how sound is produced. How can you change the pitch and volume of different instruments? Worksheet about musical instruments – what is vibrating? How can you change the pitch and the volume? Class demo to prove that light travels in a straight line Drawing a light diagram and labelling simple reflection diagram.
3 (25/8-29/8)	How is light reflected? Can light bend? What happens when light travels through different materials (mediums)?	- Laws of reflection – investigation into the laws of reflection - Write an evaluation using the writing strategies: WWW- what went well EBI: Even better if - Refraction investigation. – passing light through different mediums - Writing activity - writing a letter to explain how refraction works in a real life situation.
4 (1/9-5/9)	How is the reflection of sound used in nature and technology? How do the acoustics change in different environments?	-  Use the ripple tank demo and interactive computer models to investigate how sound waves behave (echo, reverberation, absorption) Sounds amazing sound lab
	How is the sound affected when using different materials? Can sound be heard in space?	Investigation about how sound travels through different materials: String telephones – Selecting IV, DV and control variables and carrying out the investigation. Displaying findings in poster form. Demonstration using a vacuum jar – make observations and apply your knowledge about how sound travels using particle theory
5 (8/9-12/9)	How are shadows formed? Which materials allow shadows to form? How can the size of shadows be changed?	·         Investigate how much light can pass through different materials – opaque, transparent and translucent. What type of shadows are formed? ·         Planning formative task – Planning and carrying out a shadow investigation - application -Wayang puppet show. ·         Introduce the criteria – B and C ·         Group roles to help organisation ·         Keyword quick quiz
6 (15/9-19/9)	How do we hear? Are 2 ears better than one? How do we measure the loudness of sound and pitch? How can our hearing be damaged?	-         - Learn about the structure of the ear and how the vibration travels through the different parts of the ear – matching and labelling worksheet -      -    Confuse a phone video – Class investigation to see if 2 ears are better than one. -       -   Measure how loud different parts of the school are using the decibel meter. -       -   Matching activity from chapter 11 – threshold of hearing to levels that damage your ears
7 (22/9-26/9)	Can we improve our hearing?	Super Pinna -       Formative task B and C (focusing on conclusion and evaluation writing) Self assessment how to improve your score?
8 (29-9-3/10)	Setting a timeline What is the light spectrum? What is white light made from? What are the primary colours of light?	-Introduce the Criteria D assessment. Plan a timeline for the complement of the assessment.   ·         Dispersion of light experiment to introduce the light spectrum. ·         Primary colours of light – how different colours are reflected or absorbed. Use of filters – whole class investigation
9 (6/10-10/10	How does the eye perceive light? How do lenses help to correct vision? Why can some people not see the same as others?	·         Parts of the eye and colour blindness ·         Eye dissection and lenses
10 -11(15/10-24/10)	Technical uses and implementation	Reading and selecting the appropriate information about  an inventor of an invention that uses light and sound.
12 (27/10-31/10) - 13 (3/11-7/11)	Assessment B and C How can we transform headphones into a speaker? What is the relationship between the behaviour of energy and how we transform it into different uses?	Designing a headphone speaker. - Planning and completing a full lab report.
14 (10/11-14/11)	Review and reflection of the unit Due date for Criteria D assessment	- Reflection task - Practice test