What helps us see things better in the dark?
Which of these is used to talk to people far away?
What is used to make things bigger so we can see tiny things?
Which of these helps us travel faster?
What does a computer need to work?
Which of these is a type of energy?
What do we call the study of the stars and planets?
What is used to measure how hot or cold something is?
Which of these helps us watch moving pictures and listen to sound?
What protects us from the sun?
