Every technology that an engineer designs uses different materials. Legos are just one of the objects Kindergartners explored. Each material has different properties that are suited for its purpose.
Some of the properties we have learned thus far are: hard/soft, strong/weak, wet/dry, shiny/dull, thick/thin, etc.
Some of the properties we have learned thus far are: hard/soft, strong/weak, wet/dry, shiny/dull, thick/thin, etc.