EHow Can We SSENTIAL QUESTION Classify Vertebrates? · SC.3.L.15.1arthropods, vertebrates and...
Transcript of EHow Can We SSENTIAL QUESTION Classify Vertebrates? · SC.3.L.15.1arthropods, vertebrates and...
ACTIVE READING
Engage Your Brain
ESSENTIAL QUESTION
How Can We Classify Vertebrates?
Lesson VocabularyList each term. As you learn about each one, make notes in the Interactive Glossary.
Signal Words: ComparisonSignal words show connections between ideas. Words that signal comparisons, or similarities, include like, alike, same as, similar to, and resembles. Active readers remember what they read because they are alert to signal words that identify comparisons.
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yLESSON 2SC.3.L.15.1 Classify animals into major groups (mammals, birds, reptiles, amphibians, fish,
arthropods, vertebrates and invertebrates, those having live births and those which lay eggs)according to their physical characteristics and behaviors. SC.3.N.3.2 Recognize that scientists use models to help understand and explain how things work.
Find the answer to the following question in this lesson and record it here.
How would you classify this animal?
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Have a Backbone!
What do you have in common with fish, alligators, frogs, birds, and seals? Why, it’s your backbone!
ACTIVE READING As you read these two pages, find and underline the definition of vertebrate.
Lions live in grasslands. Their young are called cubs.
Some boas live in thick forests. Their backbones let them curl up and stretch out!
Animals that have a backbone are called
vertebrates. There are many kinds of
vertebrates. Frogs, birds, snakes, and tigers
are all vertebrates. Vertebrates live in many
places.
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DO THE MATH
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This bass lives in fresh water. Like most kinds of fish, it lays eggs.
FishFish are vertebrates, too. Fish are
many sizes, shapes, and colors. Some
fish are tiny. Other fish, such as the
whale shark, are large. A whale
shark can grow as long as a school
bus! Fish take in oxygen through
their gills and spend their whole
lives in water.
Measure in Centimeters
Alexa’s goby is about 3 centimeters long. Draw a fish this long.
Samuel’s goldfish is 6 centimeters long. Draw a fish this long.
This fish
lives deep in
the ocean where
there is no light.
Sea Horse
Monkf ish
Bass
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Amphibian or Reptile?How are amphibians and reptiles different? Read on to learn about these two groups.
ACTIVE READING As you read these two pages, draw circles around the clue words that signal when things are being compared.
This amphibian lives around water.
This reptile lays eggs.
Amphibians [am•FIB•ee•uhnz]
start life in water. Many amphibians
move to land as they grow.
Salamanders, toads, and frogs
are amphibians. Like most other
amphibians, frogs lay their eggs
in water. When the eggs hatch,
the tadpoles look like fish. Most
amphibians have smooth, moist skin.
Young amphibians have gills. Many
adult amphibians have lungs.
Reptiles are animals with scales
covering their bodies. Lizards
and turtles are reptiles. Similar to
amphibians, most reptiles hatch from
eggs. A reptile breathes with lungs its
whole life. Reptiles, such as crocodiles,
that spend a lot of time in water must
come up for air.
Frog
Turtle
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Newt
Alligators are covered with large scales. They lay eggs in nests.
Geckos are covered with scales. They
breathe using lungs.
Mudpuppies have smooth, moist skin.
Identify Read the facts on each trading
card. In the circles, write an “A” for amphibian or an “R” for reptile. Then color the borders green for reptiles or orange for amphibians.
Alligator
Gecko
Mudpuppy
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Bee-eaters
have colorful feathers.
Bee-eater
Penguin
Birds and MammalsWhat are some other vertebrate groups? Read to find out.
ACTIVE READING As you read these two pages, underline three characteristics of birds and circle three characteristics of mammals.
Flamingos live in places with
shallow water.
Birds are another kind of vertebrate. Birds
are animals that have wings, feathers, and
beaks and lay eggs. Some birds, such as the
hummingbird, are tiny. Other birds, such as
the ostrich, are very large. Birds breathe
with lungs.
Owl
Flamingo
Golden Pheasant
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Can you tell why this animal is called a bearded seal?
Bearded Seal
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Kangaroo
Elephants, apes, whales, and
dolphins are all mammals. How are
they alike? Mammals are animals
that have fur or hair. Most do not
lay eggs. Instead, female mammals
give birth to live young and make
milk to feed them. Mammals also
use lungs to breathe.
Draw your own bird or mammal card. Label its characteristics.
This monkey
has hair covering
its body.
Emperor Tamarin
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Sum It Up
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2
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Write the animal type on the line and then draw a line to
the matching picture.
A lives in water
and takes in oxygen through gills.
A has fur or
hair covering its body and gives
birth to live young.
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A lives on land
or in water and has scales.
A has feathers
and wings.
An has moist
skin and begins life in the water.
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Brain CheckName
Vocabulary Review
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LESSON 2
Complete the maze to connect each animal to its classification at the
bottom. Pass through each animal’s traits along the way.
live whole life in water
take in oxygen through gills
live in or near waterfeed milk to young
moist skin
skin with scales
hair of fur
vertebrate
feathers
wings
mammal reptile fish bird amphibian
goldfish salamander snake hippo owl
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Take It
HomeShare what you learned about types of animals with a family member. Together, name and describe the fish, reptiles, amphibians, birds, and mammals you have seen or know about.
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You are hiking along a river. You see an animal that looks like it could be either
a lizard or a salamander. What are questions you could ask the guide to help
you decide which animal it is?
Draw an imaginary bird. Label the parts that make it a bird.
Place an X on the animals that lay eggs.
buffalo newt ostrich salmonlizard
Apply Concepts
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