Complete the text. Use the words in brackets in the past simple form.
Last week we _ _ _ _ _ _ _ (GO) on a school trip to a science museum. We _ _ _ _ _ _ _ (LEAVE) school at half past eight and _ _ _ _ _ _ _ (TRAVEL) there on our school bus. I sat on the back seat! When we _ _ _ _ _ _ _ (ARRIVE) there, we played science games on some computers and someone _ _ _ _ _ _ _ (EXPLAIN) how to make plastic and where gold comes from!