text.skipToContent text.skipToNavigation

Steve Spangler Science Giant Growing Frog

Steve Spangler Science
You'll get it fast. Usually arrives within 3 business days.

Product Overview

Ages 4+ / Grades PreK+
You guessed it... this frog grows to an enormous size when you soak it in water. The frog starts out 8 cm (3 in) long and grows to 23 cm (9 in). Remember, it grows in all directions, so this frog is huge. Dry it out (if you're patient and careful) and watch it return to its original size.

The difference between our product and that of our competition is that we include a comprehensive activity guide which provides valuable activities and classroom connections to help demonstrate the scientific principles behind our growing creatures.
  • This frog grows to an enormous size when you soak in water
  • Leave it out to dry, and eventually he'll shrink back down
  • Great demonstration for a classroom & can even be a science fair
  • Learn about hydrophilic and hydrophobic polymers
Ages 3 and up.

What's Included?
*1 Giant Growing Frog
*Full Color Activity Guide

How Does It Work?
Just add water. Let your frog sit in the water for two weeks and watch him grow to a whopping 9 inches long!


Brand Name
Steve Spangler Science
Age / Grade
Ages 4+ / Grades PreK+
Assembly Required