| Term | Definition |
| investigate | to find out the truth about something |
| expert | someone who knows a lot about a certain subject |
| laboratory | a place where experiments are done |
| various | objects of different types |
| suspect | When you suspect someone of doing something, you think that person has done it |
| confess | to tell the truth about something you did wrong |
| inviting | If something looks inviting, you want to take part in it or have something to do with it |
| amusing | If something is fun or funny, it is amusing |
| perplexed | you are confused about something |
| inquisitive | you are curious about something |