2020 Term 3 (grp2) FAT memo

Bedfordview Primary School Natural Science and Technology - MEMO Grade 4 (Group 2) Term 3 Formal Assessment task Examiner: Mrs P. Driver Moderator: Mr J. Nash Time: 40 minutes Total: 40 marks Name: ______________________________________Class: ____________ Teacher comment: _____________________________________________ Parent signature and comment____________________________________ 1 2 3 4 5 6 7 (0-29%) (30-39%) (40-49%) (50-59%) (60-69%) (70-79%) (80-100%) _____ 40 Mark Analysis Section A Section B Section C Lower order questions 50% Middle order questions 35% Higher order questions 15% Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 5 5 5 5 5 4 5 6 INSTRUCTIONS: 1. Read your questions carefully. 2. Answer all the questions. 3. Write neatly and legibly. 4. Good luck. 5. Check your work, read each question and answer again Section A [20] Question 1: Label the water cycle next to the numbers below : 2 1) __evaporation___√__________ 3 2) __condensation__√_________ 1 3) ___precipitation___√________ 4) ___run off___√_____________ 5) ___collection_√____________ 5 4 (5) 1

Question 2: Fill in the missing words from the word bank to complete the sentences. solid gas invisible water vapour condensation melts water solidification cools liquid evaporation When water vapour is cooled it condenses and changes into __water √________. By putting ice-cream in the sun it melts it turns into a __liquid √____________ . __Evaporation √________ is when water is heated and water changes into water vapour. This water vapour like all gases is ___invisible √______________________. When a candle’s flame is blown out the liquid wax __solidifies √______ into a solid. (5) Question 3: Fill in the missing raw or manufactured material. Sand √ glass wool jersey √ peanuts √ peanut butter wood √ paper clay mug, plate, pottery, ceramics, clay √ (5) Question 4: 1) List 2 examples where struts are used to strengthen a structure. _electricity pylon, skeleton, spider web , beams on a bridge, roof trusses any acceptable answer. √√_______________________________________________ 2) List the 3 shapes that struts / pillars can be. _circular_√______ __square_√_________ __triangular__√____________ (5) 2

Section B [14] Question 1: Properties of materials. Use the list of properties in the block below to describe the items below. There is more than one property to describe each item, but only write down one answer. transparent strong flexible hard stiff heavy soft light waterproof absorbent 1.1) Swimming towel: __absorbent; flexible; light; strong √_______ 1.2) Elastic band: _flexible; strong; light √____________________ 1.3) Water bottle: __waterproof; light; stiff; strong_√____________ 1.4) Soccer ball:__strong: light; waterproof; stiff__√____________ 1.5) Wood cupboard: __strong; hard; heavy; stiff; waterproof √___ (5) Question 2: True or False Write next to the sentences if they are true or false. If they are false write the correct sentence. 2.1) Paper is can be strengthened by rolling or folding it.___True__√___________ ___________________________________________________________________ ___________________________________________________________________ 2.2) The poles of an electricity pylon are an example of stuts. _True__√__________ ___________________________________________________________________ ___________________________________________________________________ 2.3) A guy rope is a pillar/tube used to support structures. ___False, a guy rope is a rope or cable pulled tight to support a structure OR a strut is a pillar/tube used to support structures.___ √√_____________________________________ 2.4) Struts are joined in a triangular shape to make the structure stronger.__True_√__ ____________________________________________________________________ ____________________________________________________________________ (5) 3

Question 3: Multiple choice Circle the correct answer from the options below. 3.1) What is the definition of a raw material? a) It had not yet been baked. b) A pile of wood. c) It is jersey made of wool. d) Found in the environment, it is in its natural state. 3.2) What is the definition of a manufactured material? a) It is a table and chairs b) It is a raw material made into something useful. c) It is a product found in nature. d) It is used to make dresses. 3.3) What raw material is used to make the matjieshuis? a) Sticks placed in an outline of a circle b) Mud c) The framework is covered by grass layers d) Both a and b 3.4) What do the Xhosa people make their homes from? a) Clay bricks and thatch roof b) Metal struts c) Tree branches covered with grass mats d) Metal sheeting [4] 4

Section C: How glass is made: [6] Please read the passage below carefully. Sand is a raw material. Sand is used to make glass by mixing it with limestone and soda ash. The sand mixture is heated to a very high temperature until it melts and becomes a liquid. The sand becomes clear and changes into liquid glass. The liquid glass is poured into different moulds to make different shapes and objects. As the liquid glass cools it goes hard and solidifies. Glass is used to make products such as window panes, bottles, drinking glasses and light bulbs. They are then carefully packaged. The glass items are then transported to the shops to be sold. Read the passage again. Use the information above to complete a flow diagram on the process of how glass is made. Please watch the order of the flow diagram. Please do your answers in pencil first, check your work, then write in pen. 1) A mixture of sand, 2) This mixture is heated to a limestone and soda ash are high temperature till it melts to used to make glass. √ a liquid. √ 4) The liquid glass in the moulds 3) The liquid glass is poured then hardens / solidifies. √ into mould to make different shapes. √ 5) Glass is used to make different 6) Glass items are transported to products, they are then wrapped the shops to be sold. √ carefully. √ 5

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