The larva grow front and back legs and lose their tails. An adult frog has lungs and teeth. Compare a tadpole and an adult frog. Their physical characteristics are different. The larva does not have eggs at first.
Tadpoles eat plants.
Frogs eat insects. Tadpoles live in the water. Frogs spend some time on land. Make a frog mask. Show pictures of a frog using his tongue to get insects.