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In this activity, challenge learners to float a paper clip in a cup of water. Learners discover that a paper clip will sink in a cup of water, except when it is placed on a piece of paper towel.

1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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In this interactive board game, learners "hire" different types of scientists to help canine character Ruff Ruffman solve unusual problems.

1 cent - $1 per student Ages 6 - 11 45 to 60 minutes