We received a package from Honey Potts the Bear.
He needed our help to find out what materials are waterproof and what would be the best material for making hats for all the teddy bears going to the teddy bears picnic.
Of course we wanted to help so we did an experiment. Honey Potts sent us 4 hats - a fabric baseball cap, a woolly hat, a paper hat and a plastic rain hat.
First we poured a little water on each one.
Next we checked to see if the water soaked through.
We found out that the fabric baseball cap, the woolly hat and the paper hat were definitely not waterproof. The bears would get wet if they wore any of those hats to the picnic.
The plastic rain hat was the only one that would keep the bears dry.
We sent letters to Honey Potts telling him our results.
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