1. By: Maddie Cooper

2.  Day 1  Day 2  Day3

3.  Our first boat:  It couldn’t float because…  The secret potion didn’t work  Balloons too big so it was pulling boat up, so cap wasn’t in water  To make it better we…  Added a paddle (fought against secret potion, if potion worked anyway)

4.  Modified boat two by…  Adding paddle to front to work with potion (if potion worked)  Paddle kept hitting the bottom

5.  We made a whole different boat called the Speed Splash!  It works because…  We have a balloon that deflates  When balloon deflates the air pushes the boat  The water bottle shape helps the boat cut through the water easily  The chopsticks helps keep it balanced

6.  Here are some materials we used on our boat:  Balloon  Water Bottle  Chopsticks  Tape Go Speed Splasher!!!

7.  Here are some materials we used on our failed boats:  Baking soda  Vinegar  Balloons  Water bottle  Paddle

8. Elastic- Balloon expanding Motion- Balloon deflating Motion- Boat moving Sound- Deflating noise It restarts!