2019 Nov Exam Memo

L/S VAN DYK PRIMARY SUBJECT HEAD: NS & TECH MOPERATED EXAMINATION — TERM 4 2019 oe 11 -11- 140 Q GRADE 4 NATURAL SCIENCES AND TECHNOLOGY DISTRICT: Ekhuruleni South District DATE: 6 November 2019 DURATION: 1 HR EXAMINATOR: Ms. L. Opperman MODERATOR: Mrs. M. Du Preez NAME OF LEARNER: Hem GRADE: 4. CLASS LIST NUMBER: QUESTION 1|/2/3 ;4|)5 /6 Total LEVEL MAXIMUM .| MARK LEARNER’S MARK % 6/5 |]7|6 | 6 | 10 40 1/2/3/4|)5)6/7 INSTRUCTIONS 1. Answer all the questions ON THE PAPER. 2. Ensure that all details on the cover page have been completed 3. Spelling and grammar is important, please check your work before handing in your paper.

Question 1 — Circle the correct answer a Which statement best describe how a musical instrument work? A. e D. Musical instruments make sounds through the use of electricity. Musical instruments make sounds through vibrations. Musical instruments make sounds through swinging them. Musical instruments make sounds through beating actions only. 1.2 Sound energy is a type of energy that you can A. See Hear ( Store D. Touch 1.3 The sun gives us and light energy Heat B. Sound Cc. Kinetic D. Movement 1.4 All energy on earth comes directly or indirectly from A. 6 The Sun 15 The Moon isa , round rocky object that orbits Earth. (4) cold B. Beautiful on Windy D. Warm Coal Power stations Green plants [6] (1) (1) (1)

1.6 The Sun and stars do not really move, they only appear to move because The Earth revolves around its own axis B. We get dizzy looking up at the stars Cc. Planets orbit around the Sun D. The Moon revolves in an orbit around the Earth Question 2 State whether the following statement are TRUE or FALSE. 2 Light is the energy that travels in rays. True 2.2. The Sun is much bigger than the Earth. True 2.3. Piano is not a musical instrument. False 2.4 Mercury is the closest planet to the Sun. tue 2.5 A round shape, like a ball is called a sphere. Cue Question 3 Provide the scientific name / term for each of the following statements: rial Objects in space that gives off their own light. Stals 3.2. Acold, round object that moves around earth. Moon 3:3 Avery bright star that gives light and warmth to Earth. Sun 3.4 Unending darkness beyond Earth’s atmosphere. Dpace [5] EOOQL® [7] (1) (1) (1)

35 A large object that moves around a star. (1) Planet 3.6 Long tall structure that can be propelled into space. (1) Rocket 3.7 To send a spacecraft into space. (1) Launch Question 4 [6] Look at the labels given in the box below about a rocket. Use these labels to DESIGN (draw) how a rocket system works. Vv ain — the rocket is propelled upwards The rocket is propelled upwards V- payload Payload a —— fuel is stored here Fuel is stored here v ——fuel burns here Fuel burns here aS v — gases shoot downwards | Gasses show downwards How a rocket system works. Question 5 [6]

Look at the picture above. Energy can go from a source of energy to where it is needed. This is called energy transfer. During this process one type of energy may change to another type. Suggest 6 appliances and the output of energy it produces. One has been done as an example: 5. Torch = Light energy 1 Radio = Sound eneiqu Kottle = Heat enerqu ~ Lois diet = Sound / Heat _/ Movernent enelqu «Lome =YLiht energy s Fan = Movement eerqy N w ” NN} s. ion = Heat onecay VJ Question 6 [10] Look at the picture below and answer the questions that follow: a) h - } b} c)

6.2 6.3 Write down the names of the moon patterns below? 2) New Moen » Waxing Crescent. /Ciescent, Moon °) is quarter [Half Moon a) Inige quarter /Waxi xing ibbous = Full “Moon Meequarter [Waning aipbous ) Last “quottei/ Halt Mobn mCregcert / Waning Crescent What is this moon patterns called? Phases of the Moon. How long is a lunar month? (1) 29.5 days J TOTAL: 40