What is the name of the device used to talk to someone far away?

Which of these is used for transportation?

What is a computer mainly used for?

What helps us see things far away?

Which of these is an example of technology?

What does a refrigerator do?

What invention helps us see tiny things?

What do we call the study of living things?

Which of these helps us travel to other planets?

What makes light when you turn it on?