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Natural sciences

Grade 4

Planet earth and the universe

Module 37

Investigating the mysteries of outer space

Activity:

Investigating the mysteries of outer space and talking about satellites [lo 1.1, 1.3, 3.1]

Up ... up ... up...

I go

looking down on Earth

below

the moon I pass

with daring swing

and over there ...

a shiny thing ...

a star!

and many millions more

I dodge the planets one by one

here’s Venus

oh it’s really fun!

and Pluto there

the smallest one

I glide my rocket

down a sunbeam

and land in my bed ...

it was just a dream

A.V

Illustrate the poem.

It is every child’s dream to travel into space but few of us have the wonderful opportunity that Mark Shuttleworth had when he was able to go into outer space in 2002. But we can find out much about space by using a telescope.

The telescope

An Italian named Galileo Galilei made a telescope with which he could look at distant objects in 1609. He found that the brightly lit area of the sky that we call the Milky Way was actually composed of a myriad of stars. He could also see mountains and craters on the surface of the moon.

Make your own telescope from waste materials and then carry out the following assignments:

  • Use your telescope to look at the stars at night.
  • Do the same during the day but remember not to look directly at the sun as this can seriously damage your eyes.
  • You and your friends must now make up a story based on anything that you have seen through your telescope. This does not have to do with the stars but you may write about anything else. Give the class some feedback by means of role-play. Try to be creative!

Here are some ideas:

  • one group can be tourists
  • another group can be a sports team
  • another group can be television actors who act during a news bulletin
  • another group can present their story on the radio.

Space

We live below a very deep layer of air that we call the atmosphere. The atmosphere provides us with oxygen to breathe; it keeps us warm and protects us from the rays of the sun. If we travel away from the earth through the earth’s atmosphere, the air becomes thinner and thinner and it becomes very difficult to breathe. At a height of about 10 km it is not possible to breathe without extra oxygen. At a height of 160 km above the earth’s surface there is hardly any air at all. Here we really are on our way into space!

In space there is no atmosphere. Sound does not travel and weather conditions, as we know them on earth, are unknown. Space begins where earth’s atmosphere ends. But we do not know where space ends. Spacecraft have already travelled from earth and deep into the universe, but have not yet reached any of the stars that are very far away. These stars are millions of kilometres away.

Assessment

LEARNING OUTCOME 1: SCIENTIFIC INVESTIGATIONSThe 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

We know this when the learner

  • plans investigations;

1.3 evaluates data and provides feedback on observations.

LEARNING OUTCOME 3: SCIENCE, SOCIETY AND THE ENVIRONMENTThe learner will be able to demonstrate an understanding of the interrelationships between science and technology, society and the environment.

Assessment Standard

We know this when the learner

3.1 understands science and technology in the context of history and personal knowledge.

Memorandum

Hints for this module:

  • Always keep many old magazines in class, so that learners can cut pictures from them
  • Show them many pictures from books and magazines
  • Let the learners experience the subject matter practically
  • Encourage them to be creative when they do assignments or work in groups
  • Try to create activities whereby they can discover things themselves
  • If possible, show videos. Learners learn a lot through visual observation

The mystery of outer space

Read the poem to the class and let them draw a picture. Let them look for more poems or reports on space that they can read to the class.

The telescope

Make your own telescope from waste material. You can get ideas in various books

Space

  • Try to show a video about space.

Questions & Answers

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
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
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
is it 3×y ?
Joan Reply
J, combine like terms 7x-4y
Bridget Reply
im not good at math so would this help me
Rachael Reply
yes
Asali
I'm not good at math so would you help me
Samantha
what is the problem that i will help you to self with?
Asali
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
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
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 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11096/1.1
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