Why does the number of bones drop as we grow ?, Because some bones grow and join together ., Because we lose bones as we get older ., Whose heart beats faster : a child's or an adult's ?, A child's heart beats faster ., An adult's heart beats faster ., Does our brain stop working when we sleep ?, No- our brain keeps working even in our sleep ., Yes- the brain stops working during sleep ., What is the most common eye colour in the world ?, Brown, Green, Why does a child's heart beats faster ?, Because children have fewer bones . , Because their metabolism works harder ., What percent of people have brown eyes ?, About %10, About %80, Is the brain fast or slow ?, It works very slowly ., It works much faster than we think ., How many bones are there in a baby's body ?, 206, 270, Which eye color is seen in only 2-3% of the world's population ?, Green, Blue, Which organ keeps us alive ?, Eyes , Heart.

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