Kids can learn where the “margin” is located in a pond habitat. They can study pond life from the water cycle to water-skimming insects. The water testing kit lets them determine the pH of the water and measure the presence of nitrogen and ammonia. Seeds and a potting mix are included so that children can discover why the carbon dioxide cycle is important to life on Earth. A step-by-step mock dissection includes a plastic frog and his inner organs. There are 14 activities in all. A Pond Life Field Guide is also included. “It’s really neat to see the inside of the frog,” said 10-year-old Alexa Hughes. She also enjoyed planting the flowers. “This was a great learning tool,” commented her homeschooling mom, Shawna. “Any excuse to get wet is good,” added Lynn Costine, another homeschooling mother.