If you find the questions easy to answer, that probably means you should think a little more. Several of the questions are inter-related. Later questions may help you to extend or criticise your answers to earlier questions. So it may be a good idea not to read beyond a question until you've tried thinking or writing about it. Many of the questions below are about words.
Words are among the most important of our thinking tools.
Try not merely to give your answers to these questions, but also to give your reasons. Write down some words or phrases which refer to things you have never experienced, and discuss the extent to which you think you might understand them. Scientists often talk about things which they cannot see, hear, smell, taste or feel, like atoms, genes, cosmic radiation. Write down some more examples if you can. Then try to write down, for some of them, an explanation of how you came to understand them, and how you might decide whether somebody else understood them in the same way as you.