How do your eyes work? What are the different parts of your eye? Why do some people need to wear glasses or contact lenses? For free home activities sign-up at www.WhoSmarted.com See omnystudio.com/listener for privacy information. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Why do we blow up balloons at parties? What gas was originally used to make balloons float? What else are balloons used for? For free home activities sign-up at www.WhoSmarted.com   See omnystudio.com/listener for privacy information. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Who invented Gummy Bears? What shape were Gummy Bears originally? How many Gummy Bears are sold each year? For free home activities sign-up at www.WhoSmarted.com See omnystudio.com/listener for privacy information. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Which would be the better planet to live on? What is the surface of Mars and Venus like? Why are we always exploring Mars and not Venus? For free home activities sign-up at www.WhoSmarted.com See omnystudio.com/listener for privacy information. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Who was da Vinci? What were his most famous works of art? What was the Italian Renaissance? For free home activities sign-up at www.WhoSmarted.com See omnystudio.com/listener for privacy information. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Who built the first highways in America? How many highways are there? How do Interstates get their numbers? For free home activities sign-up at www.WhoSmarted.com See omnystudio.com/listener for privacy information. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

How do trees clean the air? How do trees breathe? Do trees die in the winter when they shed their leaves? For free home activities sign-up at www.WhoSmarted.com See omnystudio.com/listener for privacy information. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Why do humans cook their food? Did humans always cook their food? What are some different ways to cook food? For free home activities sign-up at www.WhoSmarted.com See omnystudio.com/listener for privacy information. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

What is a tongue for? What are those bumps on your tongue? How does taste work? For free home activities sign up at www.WhoSmarted.com. See omnystudio.com/listener for privacy information. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Who invented sneakers? How did sneakers become so popular? Why are they called sneakers? For free home activities sign up at www.whosmarted.com See omnystudio.com/listener for privacy information. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.