I love science it typically dealing with imaginative concepts such as futuristic science and technology, space travel, time travel
That sounds so interesting!  What can you tell me about space travel? 
Space travel is just traveling through space, Science fiction often explores the potential consequences of scientific and other innovations! It can be scary sometimes too
Wow, that is so cool!  I love science fiction - I used to watch Dr. Who a lot!
Dr Who is great! Science fiction often avoids the supernatural though.
Really?  I didn't know that!  Do you believe in UFOs?  I think I saw one before, but maybe it was my imagination!  
I like that Historically, science-fiction stories have had a grounding in actual science
I've heard that!  Science is so fascinating!