0 Playing with Light was developed by Scitech, Perth, Australia. Images: Source – Scitech, Perth. Prepared by Bronwyn Quint Program Coordinator Physical Science Scienceworks Bookings (03) 9392 4819 weekdays. Copyright Teachers may photocopy this kit for educational purposes. http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ Contents Teacher Notes Introduction 3 Key messages 4 Playing with Light exhibition description 5 Exhibition map 13 Victorian Curriculum Relevance 14 Resources 22 Student Activities Kaleidoscope 17 Colour Mixing 17 See in Slow Motion 17 Bendy Mirror 18 See with a Spectroscope 18 Video Challenge 20 Web Search 21 http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 2 / 22 Teacher Notes Introduction LIGHT is fundamental to our everyday lives. With so many applications from the apparent simplicity of vision, the beauty of rainbows or paintings, to the high tech world of fibre optic communication, holographic security and laser surgery, light provides the basis for much of our technology and our view of the world. PLAY is a means to ignite the imagination for people of all ages. Open ended and without instruction, it offers the opportunity for exploration and creativity, but most importantly, it enables learning through experimentation, a key tenet of the scientific process. In drawing together PLAY and LIGHT, Scitech has created an exhibition experience like no other. Using basic physics principles, innovative interactive experiences and a sense of fun, Playing with Light offers the opportunity to explore our world and how it is illuminated through 22 exhibits with a multitude of outcomes. Physics, and in particular optics, is a subject that is difficult to demonstrate in the classroom without specialist equipment. This exhibition provides the opportunity to engage both primary and secondary school students. The subject material has very close links to the science curriculum, providing high quality teaching and learning opportunities outside the classroom for visiting groups. http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 3 / 22 Teacher Notes Playing with Light Key messages 1. Light plays a vital role in our daily lives Our vision relies on light and the optics of the eye. Rainbows and sunsets are beautiful examples of light phenomena in nature, while practical applications include mirrors, lenses, cameras, telescopes and microscopes. Combined with engineering and other scientific fields, optics has led to the development of lasers, holography, fibre optics and more. Through its use in a range of applications, such as medicine, communications and security, light provides great benefits to society. 2. Science helps us to describe and explain the behaviour of light and to discover even more Science helps us to describe and explain natural light phenomena, such as reflection, refraction and adsorption, to make sense of the world around us. Ongoing scientific research has led to the progressively deeper understanding of the nature of light and driven the development of ever more sophisticated technology in optics and other scientific fields. 3. Play and experimentation are important for learning Albert Einstein said that “Play is the highest form of research”. Play leads to the development of skills in observation, experimentation and the testing of ideas. The range of open ended, interactive exhibits provides opportunities for visitors to ask questions, investigate and draw conclusions from their own experiments, encouraging and enabling them to improve their own scientific literacy. http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 4 / 22 Teacher Notes Playing with Light Exhibition description Entry Visitors enter the exhibition through an interactive tunnel containing over 20,000 LEDs that switch on and off in response to a visitor’s movements. Laser dodge Visitors are challenged to reach their next destination without activating an alarm by successfully dodging a series of laser beams that are blocking their path. This whole-body, multi-user exhibit demonstrates the properties of laser light and highlights its use in security applications. Sticky light Multiple users can observe and creatively interact with a beam of light as it traces the edge of surfaces placed on the table by the user, such as shapes or even the hands of the user. This exhibit showcases the use of lasers for applications such as industrial welding. http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 5 / 22 Teacher Notes Kaleidoscope The kaleidoscope exhibit takes visitors into a world of many reflections. A triangle arrangement of three large mirrors produces multiple images of the one or more visitors standing inside. This exhibit gives insight into the workings of a toy kaleidoscope. Bendy mirror Visitors can make themselves shorter, taller, thinner, wider, and more with our adjustable bendy mirror. This multi-user exhibit allows visitors to explore how the shape of the mirror affects the size and orientation of the image they see. The exhibit highlights the use of adaptive optics technology in astronomy and other applications. Colour shadows Multiple users can stand, wave, jump or dance in front of a large screen and observe their ‘coloured shadows’. This exhibit demonstrates that three primary colours can be combined to give white light and reveals what happens when one or more of these colours are blocked. http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 6 / 22 Teacher Notes Make a telescope Visitors build a simple telescope and use it to see tiny pictures and messages on the other side of the exhibition. By varying the lenses used and the distance between them they can alter the magnifying power of the telescope and learn more about how telescopes work. Light lab This multi-user exhibit allows visitors to experiment freely with a range of optical components such as lenses, mirrors and prisms using a central array of white and coloured light beams. This exhibit reinforces concepts explored by other exhibits and encourages deeper experimentation. Graphics highlight the importance of scientific research in light and other fields. Change your view The lens and filter effects wheel demonstrates how optical components can change the way we see our world. Visitors can rotate one of two large wheels to select a lens, filter or combination to peer through and explore its effect on light. http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 7 / 22 Teacher Notes Computer vision Visitors observing their own shadow on a screen will notice their shadow will come to life! This multi-user exhibit showcases impressive computer vision technology, providing visitors with a full body, creative interactive experience. Graphics highlight the use of computer vision in surveillance and medical applications. Paint with infrared This high-tech exhibit allows visitors to draw on a projector screen using a virtual paint brush and paint bucket. This multi-user exhibit offers a creative, colourful experience and demonstrates infrared detection technology in action. Graphics explain infrared light and highlight a range of applications. Colour mixing Visitors can manipulate a red, green and blue light source to produce colourful overlapping patterns and explore primary colour mixing. Graphics explain the difference between different types of colour mixing and highlight applications of each. http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 8 / 22 Teacher Notes See with a spectroscope Visitors can use a spectroscope to examine a number of different light sources and discover the differences in their spectra. Graphics highlight different types of spectra and applications of spectroscopy. Light investigation Visitors manipulate laser beams to explore the behaviour of light as it travels from one material to another. The exhibit allows users to investigate various properties of light, such as reflection, refraction and total internal reflection of light. Guiding light Visitors can make light bounce down a stream of water, demonstrating total internal reflection. Depending on the curvature of the stream of water, which the user can vary, light will either partially escape or be completely trapped. Fibre optic transmission This exhibit allows visitors to look through an optical fibre cable and see an image, such as the room around them or their own hand, etc. The optical fibres inside the cable are spread out and displayed for the visitors to see as they experiment. This demonstrates fibre optic transmission of data. http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 9 / 22 Teacher Notes Freeze your shadow Visitors stand, wave, jump, dance in front of a screen and experience a flash of light. Their shadows appear frozen on the screen behind them before slowly fading away. This multiuser, full body exhibit allows visitors to explore phosphorescence. Visitors can also draw on the screen using a UV wand. See in slow motion Visitors use a strobe light to examine a piece of machinery with components moving at high speed. By varying the frequency of the flashes of light from the strobe they can make some of the components appear to slow, stop or even move backwards. The exhibit highlights the use of strobe lights in industrial applications. http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 10 / 22 Teacher Notes Hologram Holograms are photographic images that appear to be 3-dimensional when viewed under illumination. Visitors can investigate the appearance of two holograms as they view them from different positions and even peer through them. Graphics highlight a range of holographic applications. Concave reflections Visitors will be amazed with this exhibit that uses reflection to allow them to ‘shake their own hand’. As they reach into a large black dome, a ‘spooky’ inverted image of their hand appears to reach right out back at them. Visitors can investigate the different images formed at different positions within the dome. The exhibit allows visitors to explore the range of images that that can be produced by a concave mirror. Polarised light Visitors can explore what happens when polarised light passes through a variety of objects followed by a polarising filter. They can rotate the polarising filter and objects and investigate the effect on the colours and patterns seen. Graphics highlight applications of polarised materials. http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 11 / 22 Teacher Notes Information kiosks LIGHT: This touch-screen kiosk provides visitors with information on what light is, how visible light allows us to see things, and applications of other types of light, including light that we can’t see such as infrared and UV. LASERS: This touch-screen kiosk provides visitors with information on what a laser is, how lasers work and how they are used all around us in our daily lives. COLOUR: This touch-screen kiosk provides visitors with information on how we perceive colour and explains the difference between colour mixing with light and colour mixing with paint, highlighting applications in our daily lives. http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 12 / 22 Teacher Notes Exhibition map http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 13 / 22 Teacher Notes Victorian Curriculum Relevance Level 4 Domain Discipline-based Learning Science Students explain change in terms of cause and effect. They identify the characteristics of physical and chemical changes. Interdisciplinary Learning ICT Physical, personal and social learning Dimensions, standards or learning focus Students develop a systematic knowledge of science and science concepts drawn from traditional and emerging sciences. Students use everyday examples to illustrate the transforming and transferring of energy. ICT for visualising thinking Students apply ICT tools and techniques to represent and explore processes, patterns and cause-and-effect relationships. Students review their stored thinking strategies in order to identify similarities and differences in their thinking patterns. They document in their bank of digital evidence how these visualising thinking strategies help them to understand concepts and relationships. ICT for creating Students safely and independently use a range of skills, procedures, equipment and functions to process different data types and produce accurate and suitably formatted products to suit different purposes and audiences. Interpersonal Development Working in teams Students work effectively in different teams and take on a variety of roles to complete tasks of varying length and complexity. They work cooperatively to allocate tasks and develop timelines. Students accept responsibility for their role and tasks. They explain the benefits of working in a team. They provide feedback to others and evaluate their own and the team’s performance. http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 14 / 22 Teacher Notes Level 5 Discipline-based Learning Domain Science Interdisciplinary Learning ICT Physical, personal and social learning Dimensions, standards or learning focus Students use the particle model to explain structure and properties of matter. Students use everyday examples of machines, tools and appliances to show how the thermodynamic model describes energy and change, and force and motion. ICT for visualising thinking Students use a range of data types, including sound and still and moving images, to record the decisions made and actions taken when developing new understanding and problem solving. They evaluate the strengths and weaknesses of their decisions and actions in the given situations. ICT for communicating Students select the most appropriate search engines to locate information on websites. They use complex search strategies to refine their searches. They judge the integrity of the located information based on its credibility, accuracy, reliability and comprehensiveness. Interpersonal Development Working in teams Students accept responsibility as a team member and support other members to share information, explore the ideas of others, and work cooperatively to achieve a shared purpose within a realistic timeframe. They reflect on individual and team outcomes and act to improve their own and the team’s performance. http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 15 / 22 Teacher Notes Level 6 Discipline-based Learning Domain Science Physical, personal and social learning Interdisciplinary Learning ICT Dimensions, standards or learning focus Students formulate their own hypotheses and plan and conduct investigations in order to prove or disprove them. ICT for visualising thinking Students use a range of ICT tools and data types to visualise their thinking strategies when solving problems and developing new understanding. They use visualising thinking tools and apply ICT techniques to support causal reasoning and to model and describe the dynamic relationship between variable and constant data values to test hypotheses. ICT for communicating At Level 6, students exchange ideas and considered opinions with others through online forums and websites. Students apply techniques to locate more precise information from websites, including searching general and specialised directories, and applying proximity operators. Interpersonal Development Working in teams Students work collaboratively, negotiate roles and delegate tasks to complete complex tasks in teams. Working with the strengths of a team they achieve agreed goals within set timeframes. Students describe how they respect and build on the ideas and opinions of team members and clearly articulate or record their reflections on the effectiveness of learning in a team. They develop and implement strategies for improving their contributions to achieving the team goals http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 16 / 22 Student Activity Playing with Light exhibition 1. Kaleidoscope How many reflections can you see? Do all the reflections look the same? How many mirrors are there in the kaleidoscope? 2. Colour Mixing Using the three coloured lights - red, blue and green, how many other colours can you make? What are the new colours? Colour 1 3. Colour 2 Colour 3 Colour made See in slow motion What is the strobe flash rate that makes the pendulum appear to stop? _____________________________________________________ What is the equivalent speed? ____________________________________ Rotations per minute http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 17 / 22 Student Activity Playing with Light exhibition 4. Bendy Mirror What happens to your reflection when the mirror is: Convex Horizontally _____________________________________________________________________ Convex Vertically _____________________________________________________________________ Concave Horizontally _____________________________________________________________________ Concave Vertically _____________________________________________________________________ Ripple Horizontally _____________________________________________________________________ Ripple Vertically _____________________________________________________________________ 5. See with a Spectroscope Using the Spectroscope, what do you see when you look at the different lamps? Are the images the same for all the lamps or different? If they are different, how are they different? _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 18 / 22 Student Activity Playing with Light exhibition Using coloured pencils draw the spectrum you see for each lamp. Sodium Lamp 6. 7. Halogen Lamp Compact Fluorescent Lamp Light Emitting Diode (LED) http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 19 / 22 Student Activity Playing with Light exhibition Video challenge Suitable for students in years 5 – 9. Work in groups to produce a short video to explain one of the concepts demonstrated in the Playing with Light exhibition. Your Challenge: Can you record video footage in the Playing with Light exhibition that demonstrates the following concepts: Reflection Refraction Colour mixing Total Internal Reflection Light travels in straight lines Can you find another concept to demonstrate? Your group will need to have a director, cameraman and actor or maybe two. Decide on the concept you are going to explore in the exhibition. Record some footage of your interactions in the exhibition to demonstrate the concept. Take the footage back to school to edit and use for follow up and further investigations. http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 20 / 22 Student Activity Playing with Light exhibition Web Search Use the internet to investigate one of the concepts explored in the Playing with Light exhibition. Possible things to include in your presentation are: links to web sites with applets exploring the concept diagrams showing the concept ideas video footage taken in the exhibition make sure you include all your references to the pages you have used! anything else that is relevant to the concept you have chosen. http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 21 / 22 Resources Websites 1 ATE project for Physics - Applets http://www.physicsworkshops.org/ASIP/Applets.htm 2 The Applet Collection http://www.lon-capa.org/~mmp/applist/applets.htm 3 The fundamentals of Optics http://www.play-hookey.com/optics/ http:// http://museumvictoria.com.au/scienceworks/education/education-programs/playing-with-light/ 22 / 22