2021 end of term 2 test

Bedfordview Primary School 2021 TERM 2 TEST Name: Grade : 4 Subject: Natural Science and Technology Examiner: Mrs Driver Date: 29 June 2021 Moderator: Mr Nash Time Allocation: 60 Minutes 1 2 3 4 5 6 7 % 0 – 29% 30 – 39% 40 – 49% 50 – 59% 60 – 69% 70 – 79% 80 – 100% 40 INSTRUCTIONS 1. An extra 10 minutes will be provided for reading. 2. Write neatly and legibly. 3. Answer in the spaces provided. 4. This paper consists of 6 pages. Question Analysis Question Question Question Question Question Question Question Question TOTAL 1 2 3 4 5 6 7 8 40 5 6 4 5 4 2 8 6 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Section A Question 1: Fill in the missing words in the spaces below. Use the words in the word bank to help you. [5] far apart tightly solid ice solidifies heat states of matter clouds gas evaporates wax melts condenses freezing water liquid particles water vapour 1.1) Solids, liquids and gases are known as ___________________________________. 1.2) Melted wax _________________________ when the heat is taken away. 1.3) The Sun ________________________ the water on earth and changes it into water vapour. The water vapour cools and condenses into _________________________. 1.4) Rain, hail, sleet and snow are known as ________________________ 1 | Natural Science and Technology PAGE TOTAL:

Question 2: Compare the states of matter in the table below: [6] Solid Liquid Gas write an example of each state of matter. Draw the particles showing each state of matter. Question 3: [4] Solids, liquids and gases change state when they are heated or cooled. The arrows show when heat is added and taken away. Look at the picture below and label the processes shown. 1)___________________________________ 2)___________________________________ 3 3)___________________________________ COLDER 4)___________________________________ 4 HOTTER Question 4: Match the object in column 1 to its property. [5] Object Property 4.1 Baby toy a) Light 4.2 School bag b) Flexible 4.3 Mop c) Absorbent 4.4 Weights d) Soft 4.5 Trampoline e) Heavy 4.1) _____________ 4.2) ___________ 4.3) ____________ 4.4) ___________ 4.5) __________ 2 | Natural Science and Technology PAGE TOTAL:

Section B Question 5: [4] Read the following paragraphs and answer the questions that follow in full sentences. Cotton: Cotton comes from the cotton plant. The cotton plant produces a pod that bursts open and forms a ball of cotton. These fibres are coloured and woven into fabric (cloth) that can be made into clothes. This fabric is strong but creases easily. It is cool and comfortable to wear in summer. Wool: Wool is made from animal fibres, animals like sheep, goats and rabbits. It is spun into fibres which can be coloured and made into wool fabric or used for knitting. Wool is a weak fabric but it does not wrinkle easily. It is comfortable and warm, but expensive. Polyester: Polyester is made from manufactured fibres. The fibre can be woven into fabrics with different colours and patterns. It is a strong fabric that does not wrinkle easily. It can make your body feel hot and clammy. An example of another manufactured fibre is nylon which is made from liquid coal or oil. 5.1) Read the paragraphs again and name the fabric that would be most suitable to wear in summer and explain why. ______________________________________________________________________________ ______________________________________________________________________________ ____________________________________________________________________________(2) 5.2) What property are you looking for in fabric that will be worn in winter? ______________________________________________________________________________ ____________________________________________________________________________(1) 5.3) What are the properties of polyester? ______________________________________________________________________________ ____________________________________________________________________________(1) Question 6: Look at the picture below and answer the following questions. [2] 6.1) What indigenous structure are these men building? ____________________________________________ __________________________________________(1) 6.2) What are they using to make the roof strong? ___________________________________________ ____________________________________________ ____________________________________________________________________________(1) 3 | Natural Science and Technology PAGE TOTAL:

Question 7: Look at the room below. It is full of manufactured products. Complete the table below by filling in the raw materials and what they are manufactured into. [8] Raw Material Manufactured material Example: Cotton Curtains 4 | Natural Science and Technology PAGE TOTAL:

Section C Question 8: [6] The picture below shows a gorge (steep cliffs on either side of a river). Please answer the questions below. Questions 8.1 – 8.2 have to do with this picture. 8.1) What structure would get people from one cliff to the other side, and what type of structure is this. Structure:_____________________________________________________________________ Type of structure:_____________________________________________________________ (2) 8.2) Name 2 ways in which you could strengthen this structure. ______________________________________________________________________________ ______________________________________________________________________________ ____________________________________________________________________________(2) 8.3) There are other materials that can be strengthened. Name the material and how you can make it stronger. ______________________________________________________________________________ ______________________________________________________________________________ ____________________________________________________________________________(2) Please go back and check your work. Read every question and check your answer. GOOD LUCK! 5 | Natural Science and Technology PAGE TOTAL:

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