What is it called when birds fly to warmer climates for the winter? - Migrate, Which parts of our body keep growing throughout our lives? - Ears and nose, How many legs does a spider have? - Eight, What do you call a person who studies rocks? - A geologist, Who was the first human to step on the Moon? - Neil Armstrong, How many teeth do most adult humans have? - 32, What is the largest known living land animal? - African bush elephant, What is the hardest substance in our body? - Tooth enamel,

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