Microsoft ® Office PowerPoint
of Slides: 32
for grades: 3 - 12
to the world of reptiles!
This presentation begins with a reminder that all animals can be grouped
according to those with backbones – Vertebrates and those without –
Invertebrates. Photographs will demonstrate the general characteristics
of reptiles and the fact that reptiles are difficult to define since
they do not have an isolated evolutionary lineage.
will learn that the typical characteristics of reptiles include:
membership in the Repitilia class; are cold-blooded (ectothermic);
need to bask in the sun in
order to keep their body temperatures optimum for digestion and warmth;
are covered with scales or scutes; have spinal columns and a strong
skeletal system; have well-developed brains; and have lungs and breathe
A turtle’s shell is closely examined as well as its egg laying habits.
Students will learn that many reptiles have temperature-dependent sex
determination and that eggs are affected by the temperature during a
critical time of embryonic development.
statistics from the Reptile-Database demonstrate that new species are
being continuously discovered.
will further learn that the shedding of skin by snakes is called “ecdysis”.
presentation concludes with some fun reptile facts.
New terms: vertebrates, invertebrates, ectothermic, scales, scutes,
ecdysis, carapace, oviparous.
Roiser BAA, BEd &
Kevin Chorowiec OCT, BAS, BEd