21ST CENTURY TECHOLOGY CAT

3D shapes have 3 dimensions; length, height and _____

• width

• distance

• spread

The following materials can't be 3D printed except _____

• wood

• cloth

• metal

3d printers create these 3D objects by building them up _______

• layer by layer

• sound by sound

• brick by brick

The first step in the 3D printing process is ______

• making or getting a model

• deposit the melted material

• convert model into a file to begin

_______ are used to replace missing body parts

Which of these is not an application of 3D printing?

• car parts manufacturing

• making prototypes

• making oxygen to support life

________ is a sample version of a device to test if it will work well.

• prototype

• phototype

• protonic

________ is a way of sending information through thin fibres or thread.

• fibre optics

• copper wires

• cladding

A reflective material that surrounds the core is called ______

• cladding

• receiver

• transmitter

The inner part of each fibre is called ______

• core

• cladding

• transmitter