•We wanted to find out if the
bubbles could power the boat
with baking soda and vinegar
•Straw cut in half, small bottle, tissues,
funnel, baking soda, vinegar, hot glue
gun, craft knife, and the swimming pool,
rocks, cardboard, plastic.
• We got a bottle and cut a hole in it. We cut the straw
in half. Put part of the straw in the bottle. We hot
glued around the straw to stop the water going in.
We put vinegar inside the bottle using a funnel. Then
Mrs Weir got a tissue and filled it up with baking soda
and wrapped it up tight.
•To make our boat better than the
first one, we put plastic and
cardboard on the bottom and put
rocks inside the bottle.
WHAT BOAT DO THINK WORKED BETTER?
• The second one was better than the first one because, it floated better with the
cardboard and the plastic on the bottom and rocks in the bottle. The first boat kept
tipping over and sinking.
•Because it sank really fast and kept turning
over. The second one was better than the
first one because, it floated better with the
cardboard and the plastic on the bottom
and rocks in the bottle.