3 Complete the words for the definitions. 1 It keeps our food cold. 2 You can take pictures with this. 3 A kind of transport that doesn't use petrol. 4 A small computer you control by touching the screen. 5 You talk to people and send messages on this. 6 This gives you directions in your car. 7 You can use this to see in the dark. 8 It is a kind of robot that can fly. 9 It stops you from getting a specific illness. 10 It makes paper copies of digital documents. 11 A small computer that you carry.