<< Chapter < Page Chapter >> Page >

Natural sciences

The earth and beyond

The stars

Educator section

Memorandum

Assignment 1:

  • Follow the directions in the module and let each learner make a planisphere.
  • Instead of a paper clip, a thumb tick and Prestik can also be used.
  • Ensure that the hours are marked as follows on the upper disk of the planisphere.

How to make the planisphere “outside”.

  1. Hold the map to the light. It has to show downwards, so you can see the constellations.
  2. Find the place on the upper disk where "midnight" is indicated and ensure it points south. (Ensure that the eastern and western horizons are in the correct "places".)
  3. Turn the upper disk so that the precise hour lines up with the correct date on the lower disk.

4. The stars that are visible through the plastic should now also be visible in the sky above you.

Assignment 2:

This activity can be completed in class. To keep it simple, bear the following in mind:

  • 1) provide a date, e.g. 26 May;
  • 2) and a time, e.g. 21:00 or 22:00.
  • Keep the times full hours and not minutes before or after the hour.
  • It is important that the learners know that stars are ALWAYS in the heavens, even during the day. But we cannot see them then.

Decide in advance which date is to be given to the learners, so that enough constellations and bright stars will appear in the window of the planisphere.

Leaner section

Content

Activity: to identify constellations and stars with the help of a planisphere [lo 1.2]

  • As all stars are not visible throughout the year. A planisphere, a model for assisting a viewer in finding constellations in night sky and recognising individual stars is used.

ASSIGNMENT 1

MAKE YOUR OWN PLANISPHERE

1. Draw or make a photostat copy of the following form on stiff cardboard and mark off the 24 hours of the day along the outside edge.

2. Cut out the section that is indicated, using a sharp cutter. Cover the opening with stiff plastic as indicated in the sketch.

3. Photostat the following star chart of the constellations in the Southern Hemisphere: cut it out along the outer edge and glue it to the cardboard.

IMPORTANT TO KNOW:

The names of the brightest stars are shown in bold print.

4. Make a small hole in each of the circles and use a paper clip to keep them together securely on top of one another, as in the sketch.

NOW USE THE PLANISPHERE AS FOLLOWS:

Rotate the top disc to align the relevant time with the date of the relevant day on the bottom disc. The constellations that are visible through the plastic window will be those that appear in the night sky on the particular date.

ASSIGNMENT 2

  • Your educator will provide a date and a particular time. Consult your planisphere and copy down the names of all the constellations and bright stars that are visible at the particular time. Make a clear distinction between constellations and bright stars.

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

Educator’s AssessmentCRITERIA 1. 2. 3. 4.
1. Constellations indicated correctly.
2. Bright stars indicated correctly.
3. Neatness

Assessment

Learning Outcome 1: 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.

Assessment Standard 1.2: We know this when the learner conducts investigations and collects data.

Questions & Answers

find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
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
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
hii
Uday
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
Privacy Information Security Software Version 1.1a
Good
Got questions? Join the online conversation and get instant answers!
QuizOver.com Reply

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Natural sciences grade 6. OpenStax CNX. Sep 16, 2009 Download for free at http://cnx.org/content/col11079/1.1
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Natural sciences grade 6' conversation and receive update notifications?

Ask