It is hard for kids to imagine that everything they see and use was once invented by someone. From computer games to ball point pens, Teddy bears to drinking straws, I Wonder Why Zippers Have Teeth cl
It is hard for kids to imagine that everything they see and use was once invented by someone. From computer games to ball point pens, Teddy bears to drinking straws, I Wonder Why Zippers Have Teeth cl
"What did people use before they had refrigerators?" and "Where do inventors get their ideas?" are some of the questions answered in this intriguing look at inventions.
