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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

find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
I know this work
salma
The given of f(x=x-2. then what is the value of this f(3) 5f(x+1)
virgelyn Reply
hmm well what is the answer
Abhi
how do they get the third part x = (32)5/4
kinnecy Reply
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
hmm
Abhi
is it a question of log
Abhi
🤔.
Abhi
I rally confuse this number And equations too I need exactly help
salma
But this is not salma it's Faiza live in lousvile Ky I garbage this so I am going collage with JCTC that the of the collage thank you my friends
salma
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
hii
Uday
hi
salma
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
Kim
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Al
y=10×
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris 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
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
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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