Rosa and her friends want to build boats! But how will they keep them from sinking? Through observation, trial and error, the group of children learn about density. They predict outcomes and make notes about whether they were right! After they have finished experimenting, they use what they have learned to have an exciting boat race!--Provided by publisher.
Ik heb een vraag over het boek: ‘Rosa's Big Boat Experiment - Spanyol, Jessica’.
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