Laboratory is a room or building with equipment for doing scientific tests.

Surprise means to make someone feel shock.

Sharp is having a thin edge or point that can cut something.

Blade is the thin, flat cutting part of a tool.

Button is a small object used to fasten something, for example a shirt or coat.

Experiment is a test done in order to learn something or to discover if something works or is true.

Click means to make a short, sharp sound.

Attach means to fasten or join one thing to something else.