Take act ion We are moving towards a more sustainable world . In 2015, the UN approved a set of Sustainable Development Goals (SDGs). Their aim is to create a more equal , environmentally friendly society. To reduce the use of packaging, you will learn about the materials available on our planet and how to use them ef ficiently. This will allow us to live better and enable future generations to enjoy natural resources. Target 12.5: "By 2030, substantially reduce waste generation through prevention , reduction , recycling and reuse." Which of these can you measure with the instruments you have access to? With which instruments can you measure them? • Length • Time • Temperature • Weight • Smell • Taste • Hardness • Pressure • Speed • Volume • Surface area • Colour WORK WITH THE IMAGE Look at the instruments in the images. What are they used for? Does either of them have two scales of measurement? Identify it. What is the relationship between the two scales? Find three values on one scale and write down the numbers that they represent on the other scale. L E T ' S G E T S TA R T E D IN THIS UNIT… Matter and its properties Measurement Measuring instruments Indirect measurements Converting units 9
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