Yr 7.3 Classification


2013
2013 Year 7 Classification Chapter 3

Key Concepts


  1. Patterns Order and Organisation
  2. Reasons for classifying
  3. Grouping according to similarities and differences
  4. Using the hierarchical system: kingdom, phylum, class, order, family, genus, species
  5. Using scientific naming conventions
  6. Using keys
NAME:

Science Quest 7
TEXTBOOK
SCIENCE Quest 7 PRACTICALS / ACTIVITIES
SCIENCE Quest 7
HOMEWORK
OTHER ACTIVITIES/RESOURCES
1
3.1 Patterns order and Organisations
Classification hierarchy.
What is a species
Naming organisms
P65 qu 1-7 ext. 8
Suggestions:

**doc-6051**
**doc-6052**
int-0204
Activity: Animal observations
Research project on an animal. Prezi or other presentation
Sifting and Sorting 6.1
Scientific naming 6.2
Sorting animals 6.3
Words to Learn
Phylum class order family genus species animalia plantae monera fungi protista chordate mammalia aves amphibian reptile binomial nomenclature
2
3.2 Keys to Unlock Identitiy –
Using keys
P70 qu 1-12
Activity 3.3
Doc-6053

Words to Learn
Dichotomous key, field guide
3
3.3 Which Animal–
Recognising vertebrates and invertebrates

C:Documents and SettingseholmanLocal SettingsTemporary Internet FilesContent.IE53HL09GGZj0428385[1].wmf
C:Documents and SettingseholmanLocal SettingsTemporary Internet FilesContent.IE53HL09GGZj0428385[1].wmf

Words to Learn vertebrates invertebrates
4
3.5 Mammals
P81 qu 1-4
Weblink evolution of platypus

Words to Learn
Mammal placental monotreme marsupial pouch echidna platypus
5
3.8 Which Plant
P96 qu 1
Activity: Using cameras/phones student find examples of bryophytes, angiosperm, gymnosperm, pteridophytes in yard to label and present

Words to Learn
Tracheophyte angiosperm conifer liverwort moss fern
6
3.11 Is it Alive
P 105 qu 1-5

Extension Looking back p111
Words to Learn
Cell oxygen excrete nutrient responds reproduces








Class notes

Classifying animals
We group animals based on their main structural features.
We generally do not classify animals based on colour or size or things it might be able to do until we get to the Family level.

The best way to start is to ask the question; "Does it have a backbone?" . This will put the animal into either the vertebrates (with backbones) or the invertebrates (without backbones).

The next best question to ask often refers to their outer covering. For example - do they have feathers, scales, smooth moist skin, or fur. These questions will put the animal into the correct Class.

After this the questions you might ask may be very specific and refer to particular structures the animal may have. For example with mammals we might ask do they have a pouch? - this would separate out all the marsupials from the other mammals.




What are the criteria you used to separate the animals into the groups?

Invertebrates

Cnidarians

Jellyfish
Corals
Anemones
Their characteristics are no digestive system, mouth is the anus. uses tentacles with stinging cells to capture tiny microscopic animals or debris. Bigger anemones can catch small fish with their tentacles. No brain, no specialised organs but they have specialised cells. Soft bodies no bones or shell.

Arthropoda

Jointed legs and definite body parts like a head, thorax and abdomen. Inside its exoskeleton are its organs like heart, digestive system, liver kidney etc. but they don't have bones. They do have antennae and multiples of eyes but no ears.
Centipedes
Millipedes
Arachnids
Crustaceans -have a multistage life cycle that starts in the water, and they have gills, often have nippers
Insects

Molluscs -

(Shell) on the outside and a large muscular foot. often slimy, soft body, heart, gills, digestive system, nervous system, brain (small except in octopus and squids- very intelligent) Eyes on stalks or very well developed

Worms

Mouth and anus (tube digestive system) no lungs - some have a simple heart. No eyes or ears, simple nervous system. May have more than one brain - just a collection of nerve cells
Flatworms
Segmented worms

Vertebrates

  1. Fish
  2. amphibians
  3. reptiles
  4. birds
  5. mammals
  • placentals
    monotremes
    marsupials
Student submitted notes\
Poriferans are commonly referred to as sponges. An early branching event in the history of animals separated the sponges from other metazoans. As one would expect based on their phylogenetic position, fossil sponges are among the oldest known animal fossils, dating from the Late Precambrian. Since then, sponges have been conspicuous members of many fossil communities; the number of described fossil genera exceeds 900. The approximately 5,000 living sponge species are classified in the phylum Porifera, which is composed of three distinct groups, the Hexactinellida (glass sponges),\ Sylvia

Flat worms... Nina

Is this a phlya or class? Class
How they'd reproduce? They lay hundreds of tiny eggs, if you get half of a flatworm in half it can reproduce a nother one or you sexually have baby.
skin or covering? skin, flat, usually unsegmented bodies.
warm or cold blooded? cold blooded.
special feature? they have a mouth but no anus
2 pictures of a flatworm...












<iframe src=http://museumvictoria.com.au/bugs/resources/classification.aspx
></iframe>
Detailed arthropod classification to order.
http://bijlmakers.com/entomology/classification/Insect_classification.htm

Pictures of insects to match against order
http://bugguide.net/node/view/15740

Classifying Plants
To belong to the Plant kingdom an organism must have some green parts which are used for photosynthesis. (this is the process where plants convert water and carbon dioxide in the presence of light and chlorophyll into oxygen and glucose)

Plants can be divided further based on how they stand up. Tracheophytes - plants with tubes that transport food and water from their top to their roots. We call these tubes VASCULAR TISSUE.
Plants without vascular tissue can't grow very tall and these include the BRYOPHYTES. Examples of bryophytes are the mosses and liverworts.

Examples of plants in the Tracheophytes are the
Angiosperms - plants that produce flowers and seeds in order to reproduce.
Gymnosperms - naked seed plants. They have distinct male parts that produce pollen female cones that when fertilised produce a thin flaky seed.
Pteridophytes are ferns. They produce spores that grow into either a male or female plant. When the sex cells are combine a new plant like the adult fern will grow.

Quiz on
Chap
3.1 , 3.2, 3.3, 3.4, 3.5, 3.6, 3.8,













Old classification courses

glossary
online test

Year 7 ‘Classification’ key concepts

|||||| Key Concept
Vocab
Suggested activity
  1. What are living things and what can they do?
  2. What Kingdoms do species come from?
  3. How do we use a dichotomous key?
  4. How do we classify animals
  5. The difference between vertebrate and invertebrate.
  6. The difference between vascular plants and bryophytes.
Characteristics
Heterotrophs
Endothermic
Ectothermic
Photosynthesis
Autotroph
Response
Stomata
Vertebrate
respiration
Invertebrates
Dichotomous key
Classification
Amphibians
Reptiles
Birds
Fish
Mammals
Exoskeleton
Cnidarians
Arthropods
Molluscs
Worms
Fungi
Monera
Protists
Organism
Exoskeleton
NAME:



SCIENCE DIMENSIONS 1
TEXTBOOK
SCIENCE DIMENSIONS 1 PRACTICALS / ACTIVITIES
SCIENCE DIMENSIONS 1
HOMEWORK BOOK
OTHER ACTIVITIES/RESOURCES
1
6.1 Being alive p.151 - 155
Revision: Q.1 – 17
Thinking: Q18
Prac 2: Mustard Seeds (p.157)

Worksheet 1:“Is it alive?”
2
6.2 From Kingdom to species p.158 – 162
Thinking: Q.23 – 24.

Activity 6.1. p.56 & 57
Sifting and sorting
Worksheet 2:5 Kingdom handout”

Worksheet 3: “Creepy Critters”

3
6.2 From Kingdom to species cont...
Revision:Q.1 – 16.
Prac 1:Making a pasta key (p.163)
Prac 2: Classifying your pencil case (p.163)
Activity 6.2 p.59
Scientific naming
Worksheet 4: “Using Keys”
4
6.3 Animal classification p.164 – 171.
Revision: Q.1 – 9.
Thinking: Q.10 - 14

Activity 6.3 p.61 – 63.
Sorting animals

Worksheet 5: Grouping animals (work in small groups)
5
6.3 Animal classification cont...
Prac:
“What animal is that?” (animals in jars)

Worksheet 6: Vertebrates sheet
Worksheet 7: Classifying things
6
COMPUTER ROOM BOOKING
‘ICT Task’


Virtual fish dissection online
  1. http://library.thinkquest.org/05aug/00548/DissectionGame.html
  2. http://www.austmus.gov.au/fishes/students/dissect2/index.htm
7
6.4 Plants and other Kingdoms p.175 – 180.
Revision: Q.1- 8.
Thinking: Q.9 – 12.
Prac 1: Dichotomous key of plants (p.181)


8
6.5 More on Keys p.182 – 186.
Revision:Q.1 – 6.
Thinking: Q. 7
Prac 1: Constructing keys (p.186)
Activity 6.4. p.64.
Classification crossword

Make your own animal go here
http://switchzoo.com/zoo.htm

9
Revision
Summary questions p.60

Activity 6.5 p.187.
Sci-words
Worksheet 9:classification crossword
10
Test


Worksheet 10:Test
Worksheet 11: Word find













Year 7 Science ‘Classification’ Unit: MGSC

Lesson
Outline
Resources needed
1
Living Things
Brainstorm with a partner/share with class
- What does it mean to be alive?
- Challenge the ideas with examples (e.g. do plants have a brain?)
Worksheet: is it alive?
Memory Trick: MRS C GREN
Read from text and complete worksheet: characteristics of living things.

2
Living Things
- Go over worksheet: characteristics of living things. Use PowerPoint.
- Video: plant response to stimuli (phototropism & thigmotropism)
Prac: mustard seeds

3
Intro to Classification
Discussion:
What is classification?
- Putting things into groups
How do we put classify things?
- Based on similarities between them
How could we classify people in this class?
- E.g. by hair colour, summer/winter uniform, eye colour, hair up/out
Why do we classify things?
- Read pp 158 under ‘Classification’ & ‘Classifying living things’
- Easier to deal with smaller groups (e.g. can talk about the entire cat family rather than listing all of them)
- If you don’t know what a particular species is, you can look at how it is classified and see what it is related to
- If new living things are discovered, easy to put them into the correct group based on their features
Creepy Critters Activity
- Groups of 4

4
Creepy Critters
Finish activity
Mustard Seeds
Check seeds and draw results
Homework: finish writing up mustard seed prac. Hand in on loose-leaf next lesson.

5
Dichotomous Keys
Read p. 161

Talk through fig 6.2.7 and 6.2.8

Prac: classify the class. Write up key on board. Discuss characteristics used – e.g. subjective vs. objective, would this key be the same tomorrow?

Prac: Creating a Pasta Key
Do in workbook – do in FLOW CHART form

Homework: using dichotomous keys worksheet. Due Tuesday – need to hand in.

5
Mustard Seeds Prac due – hand in at start of lesson
Classification System
Read text p. 158 under ‘Groups of living things’
Notes/Discussion: all living things can be divided into separate groups, these groups are divided again. Draw tree diagram on board. Use pp. 159-160 to explain each step.
Kingdom, Phylum, Class, Order, Family, Genus, Species (organisms are classified as the same species if they can produce fertile offspring). – KIDS PREFER CHOCOLATE OVER FRIED GREEN SPINACH.
Fig 6.2.4 – shows the 5 kingdoms, will learn about each of them.
PowerPoint: Classification system + questions
Show example with humans:
Kingdom: Animals
Phylum: Chordata
Class: Mammals
Order: Primates
Family: Hominidae
Genus: Homo
Species: Sapiens
Naming Species
Notes: Each species on earth is given a unique name. The first part of the name is the genus and the second part the species. This is called the binomial system of naming. The name is always written in italics.
Discussion: what would the scientific name for humans?
Homework: homework book 6.2 – Scientific Naming

6
Go over answers to 6.2

The 5 Kingdoms
Video – 23 mins running time
Answer the following questions as you watch:
  1. Discuss the difficulties in creating a classification system.
  2. What equipment has helped with creating a classification system?
  3. What is the difference between a single-celled and a multicellular organism?
  4. List the 5 kingdoms

Worksheet: The Five Kingdoms – read through & highlight main points.

Homework book: 6.1 Sifting and Sorting

7
Animal Classification
Going to start looking at each kingdom, starting with animals.

Jigsaw
Groups needed:
Vertebrates: amphibians, reptiles, birds, fish, mammals,
Invertebrates: cnidarians, arthropods, molluscs, worms

8
Animal Classification
What animal is that?

Given mystery animal, need to write a report on how it would be classified.

9
Animal Classification
Fish dissection
Invertebrate task

10
Plant Classification
Pics of different groups of plants
What makes them the same?
What are the differences?

11
Plant Classification

12
Other Kingdom Classification

13
Keys

14
Test