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English first additional language

Grade 4

What a wonderful world

Module 34

Planets

Activity 1

To read a table for information [lo3.3.4]

SIZE OF THE PLANETS
Planet Diameter
km miles
Mercury 4 850 3 010
Venus 12 100 7 520
Earth 12 756 7 926
Mars 6 790 4 220
Jupiter 143 000 89 000
Saturn 120 000 75 000
Uranus 51 000 32 000
Neptune 49 000 30 000
Pluto 3 000 1 900

a. Study the table above carefully and answer the following questions:

(i) Which planet has the greatest diameter?

…………………………………………………………………………..

(ii) Which is the longest: a mile or a kilometre?

…………………………………………………………………………..

(iii) Which planet is closest in size to earth?

………………………………………………………………………….

(iv) Which is the second smallest planet?

………………………………………………………………………….

b. Arrange the planets from the largest to the smallest:

(i) ………………………………………………………………

(ii) ………………………………………………………………

(iii) ………………………………………………………………

(iv) ………………………………………………………………

  1. ………………………………………………………………

(vi) ………………………………………………………………

(vii) ………………………………………………………………

(viii) ………………………………………………………………

  1. ……………………………………….

Activity 2

To read and solve puzzles [lo 3.5.3]

Word game

Rearrange the jumbled letters given below to make words that have been used in the passages above, and then match the correct word with the definition or description given here:

byllaul

treemaid

divo

hemry

treesrauc

  • straight line from side to side of a figure (used for measurement)
  • a little poem
  • emptiness, nothingness
  • a song sung to an infant to make him/her sleep
  • a human being or animal (something that has been created)

Activity 3

To read a simple map [lo 3.3.1]

A Solar Eclipse

Do you know what a solar eclipse is? A solar eclipse happens when the moon moves between the earth and the sun. When this happens, the light from the sun is blocked. The sky gradually becomes dark as the moon moves in front of the sun. If the moon and the sun are in a perfect line, it is called a total eclipse. This happens very rarely.

This year a total eclipse of the sun will be visible in the northern regions of Limpopo Province. Up to 30 000 visitors from all over the world are expected, as this is an ideal place from which to experience the eclipse.

The eclipse will be visible between 08:18 and 08:21 on Wednesday, 4 December, when the moon will move directly in front of the sun for three minutes and all direct sunlight will be deflected from the earth. The very best place to experience it, is in the “path of totality”, as scientists call it. This will be between Beit Bridge and the Mozambican border in the area north of the Soutpansberg, Thohoyandou and the Shingwedzi Camp in Kruger National Park.

If you should miss this awesome event, you will have to wait until 2030 to see it in Southern Africa.

SAFETY PRECAUTIONS:

Never view the sun with the naked eye or with any optical device such as binoculars. Your eye has a lens that will concentrate the sun’s light onto your retina and cause damage without your feeling any pain while it is happening. Do not use sunglasses. Number 14 welder’s glass is fine.

Consult a map of south africa and find out where the places are that are mentioned in the passage above.

Use your dictionary to find the meanings of the following words:

1. gradually
2. rarely
3. visible
4. total
5. awesome

Write the words and their meanings in your personal dictionary and make sure that you know how to use them.

WRITING

Up to now we have spoken only of one of the elements that are found in most (or all) creation myths, namely the sun. We are now going to take a look at another fascinating element, water.

Without water there could be no life. There are billions of tons of water in the atmosphere, in the oceans and in the crust of the earth. Did you know that our bodies are 64% water?

Some of the simple properties of water are the following:

  • It freezes at 0°C and boils at 100°C at sea level.
  • It is a colourless, odourless and almost tasteless liquid.
  • It freezes to ice and boils away to vapour or steam.

Some of the frozen forms of water are icicles, snow and hail. Have you ever seen and touched snow? Did you know that every snowflake is made up of thousands of water crystals, each with its own pattern?

Look at these beautiful snowflake patterns:

Activity 4

To express own opinion in writing [lo 4.1.5]

1. Think of any exciting or pleasant or memorable experience you have had with water. (For example the first time you saw snow, or a visit to the seaside, or how you went canoeing on a river…anything that made an impression on you.)

Now write at least five full sentences about this event. If you have any photographs about it, you can bring them along and show them to your classmates and teacher, while you also tell them a little more about the experiences you had at the time.

…………………………………………………………………………………..

…………………………………………………………………………………..

………………………………………………………………………………….

………………………………………………………………………………….

………………………………………………………………………………….

………………………………………………………………………………….

………………………………………………………………………………….

………………………………………………………………………………….

Assessment

Learning outcome 3: reading and viewing

The learner will be able to read and view for information and enjoyment, and to respond critically to the aesthetic, cultural and emotional values in texts.

Assessment standard

We know this when the learner:

3.3 reads for information:

3.3.1 reads simple maps and plans (e.g. follows a route);

  • reads diagrams, graphs and charts (e.g. a family tree;

3.5 reads for pleasure and information:

3.5.3 reads and solves puzzles.

Learning outcome 4: writing

The learner will be able to write different kinds of factual and imaginative texts for a wide range of purposes.

Assessment standard

We know this when the learner:

4.1 writes to communicate information:

4.1.5 expresses an opinion in writing (e.g. whether a book was interesting or boring).

Questions & Answers

Three charges q_{1}=+3\mu C, q_{2}=+6\mu C and q_{3}=+8\mu C are located at (2,0)m (0,0)m and (0,3) coordinates respectively. Find the magnitude and direction acted upon q_{2} by the two other charges.Draw the correct graphical illustration of the problem above showing the direction of all forces.
Kate Reply
To solve this problem, we need to first find the net force acting on charge q_{2}. The magnitude of the force exerted by q_{1} on q_{2} is given by F=\frac{kq_{1}q_{2}}{r^{2}} where k is the Coulomb constant, q_{1} and q_{2} are the charges of the particles, and r is the distance between them.
Muhammed
What is the direction and net electric force on q_{1}= 5µC located at (0,4)r due to charges q_{2}=7mu located at (0,0)m and q_{3}=3\mu C located at (4,0)m?
Kate Reply
what is the change in momentum of a body?
Eunice Reply
what is a capacitor?
Raymond Reply
Capacitor is a separation of opposite charges using an insulator of very small dimension between them. Capacitor is used for allowing an AC (alternating current) to pass while a DC (direct current) is blocked.
Gautam
A motor travelling at 72km/m on sighting a stop sign applying the breaks such that under constant deaccelerate in the meters of 50 metres what is the magnitude of the accelerate
Maria Reply
please solve
Sharon
8m/s²
Aishat
What is Thermodynamics
Muordit
velocity can be 72 km/h in question. 72 km/h=20 m/s, v^2=2.a.x , 20^2=2.a.50, a=4 m/s^2.
Mehmet
A boat travels due east at a speed of 40meter per seconds across a river flowing due south at 30meter per seconds. what is the resultant speed of the boat
Saheed Reply
50 m/s due south east
Someone
which has a higher temperature, 1cup of boiling water or 1teapot of boiling water which can transfer more heat 1cup of boiling water or 1 teapot of boiling water explain your . answer
Ramon Reply
I believe temperature being an intensive property does not change for any amount of boiling water whereas heat being an extensive property changes with amount/size of the system.
Someone
Scratch that
Someone
temperature for any amount of water to boil at ntp is 100⁰C (it is a state function and and intensive property) and it depends both will give same amount of heat because the surface available for heat transfer is greater in case of the kettle as well as the heat stored in it but if you talk.....
Someone
about the amount of heat stored in the system then in that case since the mass of water in the kettle is greater so more energy is required to raise the temperature b/c more molecules of water are present in the kettle
Someone
definitely of physics
Haryormhidey Reply
how many start and codon
Esrael Reply
what is field
Felix Reply
physics, biology and chemistry this is my Field
ALIYU
field is a region of space under the influence of some physical properties
Collete
what is ogarnic chemistry
WISDOM Reply
determine the slope giving that 3y+ 2x-14=0
WISDOM
Another formula for Acceleration
Belty Reply
a=v/t. a=f/m a
IHUMA
innocent
Adah
pratica A on solution of hydro chloric acid,B is a solution containing 0.5000 mole ofsodium chlorid per dm³,put A in the burret and titrate 20.00 or 25.00cm³ portion of B using melting orange as the indicator. record the deside of your burret tabulate the burret reading and calculate the average volume of acid used?
Nassze Reply
how do lnternal energy measures
Esrael
Two bodies attract each other electrically. Do they both have to be charged? Answer the same question if the bodies repel one another.
JALLAH Reply
No. According to Isac Newtons law. this two bodies maybe you and the wall beside you. Attracting depends on the mass och each body and distance between them.
Dlovan
Are you really asking if two bodies have to be charged to be influenced by Coulombs Law?
Robert
like charges repel while unlike charges atttact
Raymond
What is specific heat capacity
Destiny Reply
Specific heat capacity is a measure of the amount of energy required to raise the temperature of a substance by one degree Celsius (or Kelvin). It is measured in Joules per kilogram per degree Celsius (J/kg°C).
AI-Robot
specific heat capacity is the amount of energy needed to raise the temperature of a substance by one degree Celsius or kelvin
ROKEEB
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Source:  OpenStax, English first additional language grade 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11093/1.1
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