ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Teachers Guide for Radiation beyond Visible Spectrum

Updated on May 28, 2018
VerityPrice profile image

Verity is simultaneously pursuing a physics degree and a teaching degree. In her spare time, she likes to cook and play video games.

Learning Outcome

"By Exploring Radiations Beyond the visible, I can describe a selected application, discussing the advantages and limitations. SCN 3-11b"

Background Science (Covered in Previous Lessons)

Definition of frequency: The number of wave peaks that pass a fixed point in one second. Measured in Hertz (Hz).
Definition of wavelength: The distance from a point on one wave to the corresponding point on the next wave. Measured in metres (m), or more commonly nanometres (nm).
Our eyes are only capable of detecting wavelengths of light between a certain range; this is called the visible spectrum and is what allows us to see colours. Beyond the visible spectrum there are named wavelengths which we cannot see but can be detected by some animals & machines. This lesson will look at Infra-red and we will consider uses of such radiation.

Full Spectrum of Light
Full Spectrum of Light | Source

During Lesson

For this particular lesson you can focus on infra-red radiation as an example. Infra-red radiation is emitted by heated objects. Get the students to note down different materials that they can find, e.g. marble, granite, stone, wood, metal. Ask them to touch each material and note down how hot it is, they can then compare which materials are hotter than others. You can then use a thermal imaging camera and point it at the materials. The hot objects will be red or orange, cold objects will be black or blue. The students will then be able to link infra-red radiation to heat and see that some objects conduct heat better than others. They can then also take photographs of themselves with the camera and try to point out which bits of their own bodies are hotter/colder than the rest and why.

Learning for Sustainability

This lesson can be linked to learning for sustainability. Thermal imaging of the Earth can show effects of global warming, e.g. melting of polar ice caps, which explains rising sea levels. It can also show thermal heat currents in the sea & areas of desert which are getting hotter every year. Showing the students these thermal pictures can help them point out differences in hot and cold places over a long period of time. It can also lead to discussion on effects of global warming and climate change, which links to knowledge of fossil fuels earlier in their science education.

Every day the Moderate-resolution Imaging Spectroradiometer (MODIS) measures sea surface temperature over the entire globe with high accuracy.
Every day the Moderate-resolution Imaging Spectroradiometer (MODIS) measures sea surface temperature over the entire globe with high accuracy. | Source

Cross Curricular Links

This learning outcome can be linked to other school subjects and provide useful classroom discussion.

Biology: Icecaps melting means that animals such as polar bears and penguins will die out, this means that animals which prey on them, such as whales, will be effected. As such this will be a huge impact on the food chain. Sea temperatures experiencing a drastic change will lead to sea animals travelling to places they haven’t before which also interferes with the food chain. It can also be dangerous for animals and people when predators start to move inland towards population centres.

Infra-red radiation can also be used medically to detect tumours in the body in a non-invasive way.

Geography: Rising sea levels & desertification will lead to many areas becoming uninhabitable, as such there will be a population movement which may result in an overcrowding of cities. This overcrowding will have an impact on the education system and the health care system.

Vocabulary: Infra means ‘further on’. Therefore it can be explained to the students that 'infra-red' translates to further on past red. This can be demonstrated to the students by showing them that infra-red is just beyond red in the light spectrum. This can then also be used to explain the differences in wavelength and frequency compared to red light.


This is how you can construct a lesson, or perhaps a series of lessons around light outside of the visible spectrum. If you have any questions, feel free to comment below and I will try my best to get back to you.

© 2015 VerityPrice


    0 of 8192 characters used
    Post Comment

    No comments yet.


    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

    Show Details
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)