1In the stay cool timeline, which event happened long ago?
2Which present-day event belongs to stay cool?
3What stayed the same from “Play with a wooden toy” to “Play with a robot toy”?
4Which event came before “Keep food in a fridge”?
- robot toy
- buy clothes
- icebox
5In the keep food cold timeline, which event happened long ago?
6In the clean the floor timeline, which event is used today?
7What stayed the same from “Keep food in an icebox” to “Keep food in a fridge”?
- same choice
- keep cold
- same tool
8Which event came before “Use a dishwasher”?
- use fan
- dish tub
- dishwasher
