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Natural sciences

Grade 8

Biodiversity

Module 26

Survival: habitat

Why are some plants and animals only found in specific areas?

Activity: to evaluate information

Work with a partner. Discuss the above question and then compile two tables of three columns each and fill in any example of which you may know. Use examples of wild animals and plants in their natural environment. Do not name pets, farm animals or garden plants.

PLANTS:

Plant name

Where does it grow?

Why does it grow there?

ANIMALS

Animal name

Where does it occur?

Why does it occur there?

Assessment of DISCUSSION ON HABITAT:

Could you obtain significant answers from the discussion?

[LO 1.3]

Poster: group work 4 - 5 learners

Plan a poster to show the habitats of animals from your list. Select two divergent habitats and try to handle the design in an original manner. Include at least three animals in each habitat.

  • Use drawings or pictures. Collect these and bring them to the lesson to complete the assignment.

Criteria:

  • Approach the assignment as a research exercise and make use of the following steps:
  • Plan the investigation
  • Collect the data
  • Formulate and communicate your findings
  • Formulate an elucidatory heading
  • Use colour in your presentation
  • Use a large text
  • Include the names of the members of the group
  • Delegate tasks
  • Choose a group member to provide feedback

Assessment of POSTER:

Did you participate constructively in this group activity by helping to plan the investigation (1.1), collect data (1.2) and communicate findings (1.3)?

[ LO 1.1; LO 1.2; LO 1.3]

Surviving in a Habitat

Organisms live in a natural environment where they are able to find food, water and shelter to protect them against enemies.

Animals also need to find partners for pairing.

Some organisms are adapted to withstand all the onslaughts of the environment.

These ADAPTATIONS comprise a strategy for survival.

Every organism’s HABITAT is the place where it lives.

Each one is adapted to its NICHE – this is its role and position in the environment.

Activity: to interpret information and apply knowledge

Study the table of STRATEGIES FOR SURVIVAL exhibited by common garden plants and animals. Provide the purpose of each adaptation.

The citrus swallowtail butterfly has mouth parts that suck up nectar. The butterfly has strong wings.

The hairy caterpillar becomes a lovely but poisonous butterfly. The prickly hairs of the caterpillar protect it.

The rose bush has thorns and leathery leaves with sharp, short tips. Caterpillars eat the leaf margins.

The chameleon has bulging eyes that can move independently. It has four toes – two point forwards and two point backwards.

It has a long prehensile tail that can grip strongly.

It is also able to adapt its colour to its surroundings.

The seeds of the thistle form an umbrella-like plume that allows long-distance dispersal by wind.

Study the following sketches and complete the accompanying questions.

The Sugarbird

Which adaptations are visible?

The fiscal shrike

How has this bird adapted?

The praying mantis

Describe the adaptation of the praying mantis.

Assessment for ADAPTATIONS:

Could you make correct deductions by allocating information to categories and interpreting it?

[LO 2.3; 2.4]

Assessment

Learning outcomes 1: Scientific investigations

The learner will be able to act confidently on curiosity about natural phenomena, and to investigate relationships and solve problems in scientific, technological and environmental contexts.

This is evident when the learner

1.1 is able to plan investigations;

1.2 is able to conduct an investigation and collect data;

1.3 is able to evaluate data and communicate findings.

Learning outcomes 2: Constructing Science Knowledge

The learner will know and be able to interpret and apply scientific, technological and environmental knowledge.

This is evident when the learner

2.3 is able to interpret information;

2.4 is able to apply knowledge.

Memorandum

Activity: DISCUSSION ON HABITAT

  • Instruct learners to do this discussion in dialogue (two learners to a group).

Poster: GROUP WORK – 4-5 LEARNERS

  • Give advance instruction to learners for forward planning and finding of materials.

Activity: STRATEGIES for SURVIVAL

  • Cutting and pasting activity.

Questions & Answers

do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Natural sciences grade 8. OpenStax CNX. Sep 12, 2009 Download for free at http://cnx.org/content/col11050/1.1
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