Olly Parker, 9

Over the summer, I went on a road trip in America! During my visit I went to Red Rock Canyon and Hoover Dam, and both were amazing. Hoover Dam has a massive bridge across the top, called the Mike O'Callaghan-Pat Tillman Memorial Bridge, named after a governor from Nevada and a war hero from Arizona. If you go to Las Vegas, these are the two places you have to see! We also went down Route 66, which takes 6 hours to drive from Las Vegas to Los Angeles. We visited Sea World in San Diego, too, where we saw Shamu the whale and a little baby whale - it was so cute!

The South Pole is colder than the North Pole.

What's YOUR favourite reptile?