| A | B |
| Vertebrates | Animals with backbones |
| Invertrebrates | Animals that do not have backbones |
| Warm-Blooded | Animals that have the same body temperature all the time |
| Cold-Blooded | Animals that can change their body temperature to its surroundings |
| Reptiles | has tough, dry, scaly skin and breathes with lungs |
| Amphibians | breathes with gills when young but breathes with lungs as an adult |
| Fish | has fins, scales, and a clear coat of slime and breathes with gills |
| Amphibians | has thin, smooth, moist skin |
| Amphibians | frogs and salamanders are? |
| Reptiles | turtles and snakes are? |
| Thermometer | Temperature is measured with? |
| Celsius | The temperature scales Scientists use |
| Vertebrates and Invertebrates | Animals can be classified into these two main groups |
| Metamorphosis | Changes that happen as an amphibian becomes and adult |