big, ecological, expensive, heavy, hot, noisy, portable, tall, useful, wide, technology, inventions, bicycle, computer, electricity, film, hot-air balloon, Internet, keyboard, mobile phone (cell phone), paper, radio, recycling, robot, satellite, steam train, toothbrush, underground, wheel, sequencers, first, then, next, after that, finally

Grammar point:
– How big is it?
– The first animated film was made in 1899.
– Where was paper first made?
– Were  you awarded a prize?