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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

A golfer on a fairway is 70 m away from the green, which sits below the level of the fairway by 20 m. If the golfer hits the ball at an angle of 40° with an initial speed of 20 m/s, how close to the green does she come?
Aislinn Reply
cm
tijani
what is titration
John Reply
what is physics
Siyaka Reply
A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of 8.0 m/s. During its fall, how much work is done on the mouse by air resistance
Jude Reply
Can you compute that for me. Ty
Jude
what is the dimension formula of energy?
David Reply
what is viscosity?
David
what is inorganic
emma Reply
what is chemistry
Youesf Reply
what is inorganic
emma
Chemistry is a branch of science that deals with the study of matter,it composition,it structure and the changes it undergoes
Adjei
please, I'm a physics student and I need help in physics
Adjanou
chemistry could also be understood like the sexual attraction/repulsion of the male and female elements. the reaction varies depending on the energy differences of each given gender. + masculine -female.
Pedro
A ball is thrown straight up.it passes a 2.0m high window 7.50 m off the ground on it path up and takes 1.30 s to go past the window.what was the ball initial velocity
Krampah Reply
2. A sled plus passenger with total mass 50 kg is pulled 20 m across the snow (0.20) at constant velocity by a force directed 25° above the horizontal. Calculate (a) the work of the applied force, (b) the work of friction, and (c) the total work.
Sahid Reply
you have been hired as an espert witness in a court case involving an automobile accident. the accident involved car A of mass 1500kg which crashed into stationary car B of mass 1100kg. the driver of car A applied his brakes 15 m before he skidded and crashed into car B. after the collision, car A s
Samuel Reply
can someone explain to me, an ignorant high school student, why the trend of the graph doesn't follow the fact that the higher frequency a sound wave is, the more power it is, hence, making me think the phons output would follow this general trend?
Joseph Reply
Nevermind i just realied that the graph is the phons output for a person with normal hearing and not just the phons output of the sound waves power, I should read the entire thing next time
Joseph
Follow up question, does anyone know where I can find a graph that accuretly depicts the actual relative "power" output of sound over its frequency instead of just humans hearing
Joseph
"Generation of electrical energy from sound energy | IEEE Conference Publication | IEEE Xplore" ***ieeexplore.ieee.org/document/7150687?reload=true
Ryan
what's motion
Maurice Reply
what are the types of wave
Maurice
answer
Magreth
progressive wave
Magreth
hello friend how are you
Muhammad Reply
fine, how about you?
Mohammed
hi
Mujahid
A string is 3.00 m long with a mass of 5.00 g. The string is held taut with a tension of 500.00 N applied to the string. A pulse is sent down the string. How long does it take the pulse to travel the 3.00 m of the string?
yasuo Reply
Who can show me the full solution in this problem?
Reofrir 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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