Inventions is the sixteenth episode from Hi-5 Series 4.
- TIM builds a musical dog house for his dog, Jock.
- CHARLI invents a new dance for Jock.
- NATHAN invents a mood-o-meter, so he'll be able to know how he feels.
- CHARLI adds a goofy face for Nathan's mood-o-meter.
- KELLIE invents a musical map with pictures on that play a tune.
- CHARLI dances like a cloud.
- KATHLEEN makes a clock that tells her which activity she has to do.
- CHARLI hangs the clothes up to the tick tock beat.
- SHARING STORIES: Charli tells us a story about a girl (Kathleen) who invents a robot (Tim) that tidies up her bedroom when her father (Nathan) asks for it, then her mother (Kellie) washes the car and Kathleen makes the robot do it.
- During third Charli's segment, she wore the same tutu from Robot Number 1.