This week our scientist made a balloon blow up by using baking soda and vinegar. First, she put baking soda into a balloon. Then, she poured vinegar into a bottle. With help, she attached the balloon to the top of the bottle. Slowly the baking soda fell from the balloon and mixed in with the vinegar. As it mixed, the balloon got bigger and bigger! We were afriad it would pop, but it didn't!
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