Here are some resources to keep them entertained.
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Check out the live cam of different animals at the San Diego zoo:
Giraffe and deer cam: https://kids.sandiegozoo.org/videos/livecam/giraffe-cam
Koala Bear cam: https://kids.sandiegozoo.org/videos/livecam/koala-cam
More animals here: https://kids.sandiegozoo.org/videos
Natural History Museum, Washington DC. Dinosaur exhibit
Field Trip to the Art Museum -- Boca Raton Museum of Art