Book 32, Question 8 · Video
Why are some lizard scales bumpy and others smooth?
Different scales do different jobs. Smooth scales help skinks slip through leaves and burrows without snagging. Scales with a small ridge down the middle, called keeled scales, can give grip and make a surface look less shiny. Tiny granular scales, like on a gecko, give skin a soft, bumpy look. The shape of a scale can tell you how an animal lives.
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What Crafty Clover says in this video
Intro
Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why are some lizard scales bumpy and others smooth?
The Big Idea
Touch different lizards and they'd feel different! Some scales are smooth, and some are bumpy. Why?
Smooth Scales
Step one: Smooth Scales. Different scales do different jobs. Smooth scales help skinks slip through leaves and burrows without snagging.
Keeled Scales
Step two: Keeled Scales. Scales with a small ridge down the middle are called keeled scales. They can give grip and make a surface look less shiny.
Granular Scales
Step three: Granular Scales. Tiny round scales called granular scales give gecko skin a soft, bumpy look. The shape of a scale can tell you how an animal lives.
A Closer Look
Let's take a closer look! For sliding. For grip. Soft bumps. Matches scales.
Quick Facts
Quick facts! A keeled scale has a little ridge like the keel of a boat. Skinks have smooth scales. Geckos have tiny granular scales. Scales give clues about how an animal lives.
Think Like a Scientist
Now, think like a scientist! Rub your fingers over smooth tile. Then try a bumpy towel. Then try a ridged cracker box. Which would help an animal grip? Which would help it slide?
Outro
Scales come in shapes for different jobs. Smooth scales help skinks slip through leaves, keeled scales with a ridge give grip, and tiny granular scales give geckos soft, bumpy skin. Science is amazing! Remember, every big discovery starts with a small question. Keep looking, keep learning, and keep asking why! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!