Lesson 3

How can animals be grouped?

Home > Private: *ARCHIVE Year 3 Science – Focus Group > Unit 1 – Biological Sciences > Lesson 3 – How can animals be grouped?

icon_lessonplan_teal_white

Lesson Plan

icon_studentpgs_teal_white

Student Pages

icon_download_teal_white

Downloads

Lesson Plan

Preparation

Have a wide variety of animal pictures from the groups listed in the lesson to discuss throughout (sponges, annelids, fish, etc.).
Students will need access to the internet and other reference material to complete the classification activity on the investigation sheet.

Curriculum links

Australian Curriculum: ACSSU044, ACSIS053, ACSIS057, ACSIS058, ACSIS060
NSW Curriculum: ST2-4LW-S, ST2-1WS-S
VIC Curriculum: VCSSU057, VCSIS065, VCSIS069, VCSIS071, VCSIS072
WA Curriculum: ACSSU044, ACSIS053, ACSIS057, ACSIS058, ACSIS060

Suggested teaching strategies

Introduction

Display the digital lesson on your smartboard to introduce animal classification.
The student summary and worksheet should be used together.

Development

Provide students with printable versions of the student summary and worksheet. Have students complete the worksheet.
Ensure students know how to pronounce all the subgroups of invertebrates and vertebrates.
Students will need to use the student summary to complete the investigation sheet. Although they should be able to figure out most of the answers, they may need to research the animals they aren’t familiar with.

Differentiation

Investigation sheet could be completed as pairs, groups or as a class rather than individually.

Conclusion

Check the answers to the investigation sheet as a class to see if everyone comes to the same conclusion. If there are conflicting answers, help students agree on the correct one.

Assessments

Worksheet answers

1. Vertebrae.
2. (a) V (b) I (c) V (d) I (e) I(f) V
3. (a) have live young/mother feeds young milk/have hair or fur (b) have feathers and wings/most can fly (c) most have scales and fins/breathe all life with gills (d) dry skin and scales (e) spend part of life in water and part on land
4. Live in water/are invertebrates/take in food and expel wastes
5. A carnivore is an animal that eats meat and a herbivore is one that eats plants.
6. (a) it would have an exoskeleton, jointed legs and segmented body, and live in water or on land (b) have spiny skin and live in seawater (c) have a shell on inside or outside of body/live in water or on land

Investigation sheet answers
Fish: cod
Can fly: crow
Mollusc: oyster
Bird: crow, emu
Invertebrate: oyster, ant, earthworm, sea urchin, cricket
Vertebrate: crocodile, frog, lizard, crow, cod, whale, emu, horse, goanna, monkey
Mammal: whale, horse, monkey
Arthropod: ant, cricket
Lives only on land: lizard, crow, emu, ant, horse, earthworm, cricket, goanna, monkey
Has legs: frog, lizard, crow, emu, ant, horse, goanna, monkey, crocodile, cricket

Student Pages

Science Year 3 Unit 1 Lesson 3 Intro 1

Lesson 3

How can animals be grouped?

Science Year 3 Unit 1 Lesson 3 Intro 2

LOADING

Lesson 3

How can animals be grouped?

0%

Science Year 3 Unit 1 Lesson 3 Slide 1

Scientists group animals by the things they have in common.

This is called classification.

There are many ways animals can be classified.

Here is one way.

Science Year 3 Unit 1 Lesson 3 Slide 2

Invertebrates are animals without backbones.

Invertebrates can be sorted into these groups:
Sponges
Coelenterates
Echinoderms
Annelids
Molluscs
Anthropods

Science Year 3 Unit 1 Lesson 3 Slide 3

Sponges live in water.

Filter tiny organisms and wastes through holes.

Science Year 3 Unit 1 Lesson 3 Slide 4

Science – Unit 1 – Less on 3 – image – jellyfish

Science – Unit 1 – Less on 3 – image – sea anenomes

Coelenterates live in water.

Have hollow bodies.

Mouths take in food
and get rid of waste.

Examples: jellyfish,
sea anenomes.

Science Year 3 Unit 1 Lesson 3 Slide 5

Science – Unit 1 – Lesson 3 – image – sea urchin

Science – Unit 1 – Lesson 3 – image – sea star

Echinoderms live in seawater.

Have spiny skin.

Examples: starfish,
sea urchins.

Science Year 3 Unit 1 Lesson 3 Slide 6

Science – Unit 1 – Lesson 3 – image – earthworm

Annelids live in water or on land.

Have soft bodies and no legs.

Examples: worms, earthworms.

Science Year 3 Unit 1 Lesson 3 Slide 7

Molluscs live in water or
on land.

Have soft bodies and no legs.

Have a shell on the outside
or inside of their body
for protection.

Examples: snails,
squid.

Science – Unit 1 – Lesson 3 – image – snail

Science – Unit 1 – Lesson 3 – image – cuttlefish

Science Year 3 Unit 1 Lesson 3 Slide 8

Science – Unit 1 – Lesson 3 – image – spider

Science – Unit 1 – Lesson 3 – image – crab

Anthropods live in water or on land.

Have a hard outside covering called an ‘exoskeleton’, jointed legs and segmented bodies.

Examples: insects (e.g. butterflies), spiders, crustaceans (e.g. crabs).

Science Year 3 Unit 1 Lesson 3 Slide 9

Vertebrates are animals with backbones.

Vertebrates can be sorted into these groups:
Mammals
Birds
Fish
Reptiles
Amphibians

Science Year 3 Unit 1 Lesson 3 Slide 10

Science – Unit 1 – Lesson 3 – image – elphants

Science – Unit 1 – Lesson 3 – image – mice

Mammals have live young which mother feeds with milk.

Have hair or fur.

Examples: elephants, mice.

Science Year 3 Unit 1 Lesson 3 Slide 11

Science – Unit 1 – Lesson 3 – image – owl

Science – Unit 1 – Lesson 3 – image – penguins

Birds have feathers and wings.

Most can fly.

Examples: owls, penguins.

Science Year 3 Unit 1 Lesson 3 Slide 12

Science – Unit 1 – Lesson 3 – image – cuttlefish

Science – Unit 1 – Lesson 3 – image – fish

Fish usually have scales and fins.

Breathe underwater all life with gills.

Lay eggs.

Science Year 3 Unit 1 Lesson 3 Slide 13

Science – Unit 1 – Lesson 3 – image – turtle

Science – Unit 1 – Lesson 3 – image – snake

Reptiles have dry skin and scales.

Lay eggs.

Examples: turtles, snakes.

Science Year 3 Unit 1 Lesson 3 Slide 14

Science – Unit 1 – Lesson 3 – image – toad

Science – Unit 1 – Lesson 3 – image – frog

Amphibians spend part of life on water and part on land.

Lay eggs.

Moist or slimy skin.

Examples: frogs, toads.

Science Year 3 Unit 1 Lesson 3 Slide 15

Other ways these animals can be classified are by

what they eat
where they live
how they move

Science Year 3 Unit 1 Lesson 3 Slide 16

Science – Unit 1 – Lesson 3 – image – carnivore

Science – Unit 1 – Lesson 3 – image – herbivore

Science – Unit 1 – Lesson 3 – image – omnivore

Animals might be meat eaters (carnivores) like sharks, plant eaters (herbivores) like elephants or eat meat
and plants (omnivores)
like mice.

Science Year 3 Unit 1 Lesson 3 Slide 17

Science – Unit 1 – Lesson 3 – image – live in water

Science – Unit 1 – Lesson 3 – image – live on land

Science – Unit 1 – Lesson 3 – image – live in both

Animals like squid and starfish live in water, some like spiders and snails live on land and others like frogs and toads live in both.

Science Year 3 Unit 1 Lesson 3 Slide 18

Science – Unit 1 – Lesson 3 – image – can fly

Science – Unit 1 – Lesson 3 – image – walks

Animals might fly like butterflies and owls or move around on four or more legs like crabs, mice and spiders.

Science Year 3 Unit 1 Lesson 3 Final Slide

POWER DOWN

Lesson 3

Complete

20%

Downloads