UNIT 5. NATURAL SCIENCE: REPTILES, AMPHIBIANS AND FISH

6. Characteristics How are
they
born?
How
many
legs do
they
have?
How do
they
breathe?
Others Examples
They have scales
that cover and
protect their body
They are
born from
eggs.
They have
4 limbs or
no limbs.
They
breathe with
their lungs
Most are
carnivores.
Others are
omnivores.
Crocodiles,
snakes, lizards
…

7. Snakes swallow their food without chewing it. After
eating, they are completely inactive to help them digest.

11. Characteristics How are
they
born?
How
many
legs do
they
have?
How do
they
breathe?
Others Examples
They have moist skin
covering their body.
All
amphibian
s lay eggs
in the
water
Tadpoles
have no
legs and
adults
have four
legs
Babies
breathe with
their gills
and adults
breathe with
their lungs.
They change
through
metamophosis
and grow into
adults
Frogs, toads,
newts and
salamanders.

12. One of the smallest amphibians in the world is the little
grass frog. It’s about 1.2 cms long

16. Characteristics How are
they
born?
How
many
legs do
they
have?
How do
they
breathe?
Others Examples
They have scales
covering their skin.
Most fish
are born
from eggs
They
don’t have
legs. They
have fins
and a tail
They
breathe
through
their gills
They live in
freshwater or in
the sea.
Tuna, piranha,
ray, eel,
seahorse,

17. Electric eels can produce 600 volts of electricity. That’s
enough electricity to kill a horse!!