2017 June Exam

GAUTENG PROVINCE Department: Education > REPUBLIC OF SOUTH AFRICA EKURHULENI SOUTH DISTRICT SUBJECT: NATURAL SCIENCES AND TECHNOLOGY Name and Surname: Gr. 4. Date: 2017 - Term 2 School: L/S Van Dyk Primary Time: 60 Minutes Marks: 40 Examiner: Ms. C. Willemse Moderator: Ms. G. Botes Instructions: 1. Answer all questions in the appropriate spaces. 2. Read the instructions to each question very carefully. 3. Manage your time effectively. Assessment Result Record QUESTION era _ LEVEL MAXIMUM MARK 5|}5)}7/]4]6|7 6 40 1 2;3)4/)5)]6 LEARNER'S MARK

QUESTION 1 Choose the correct word from those given and cross your answer in the box below: 1.1 Although living things look different, they all carry out seven similar life processes. One of the following is not part of the seven life process 9OD> 1.2 When growing yeast GOR > 13A pop > 14 A Movement Sensing Shelter Feeding water is used. Cold Boiling water Luke warm Frozen structure give support: Shell Frame Wall Basket GOP > Liquids Solids Gas None of the above 1.5 Which one of the following is not a property of glass? 9Op> Waterproof Heat resistant Flexible Transparent [1] [1] [1] [1] [1]

QUESTION 2 State whether the following statements are true or false: [5] Statements True / False 2.1. Freezing is the process when a liquid changes to a solid through cooling. 2.2. Plants need light, water, air and soil to grow. 2.3. Gases have no definite shape and take up all space available. 2.4. When solid change to liquid the process is called condensing. 2.5. Materials can be in three (3) states: e.g. Solid, Liquid and Gas. QUESTION 3 [7] From the list: [Glass jug] [Dish cloth] [Leather belt] [Gum boots] [Tooth brush] [Clay pot] [Plastic plate] [Newspaper] [Towel] A. Name two objects that are flexible. [2] B. Name one object that is waterproof. [1] C. Name two objects that are absorbent. [2] D. List two objects that are brittle. [2]

UESTION 4 Study the following pictures and answer the questions that follow: The seed in container A received sun, but no water for 3 weeks. The seed in container B received water and sun light for 3 weeks. 4.1 Explain what happened with container A’s seed and why it never germinated. [2] 4.2 Explain what happened with container B’s seed and why it germinated. [2]

QUESTION 5 The table below shows the melting temperature of different substances. Substance Melting point in degrees Celsius (°C) Ice 10 Chocolate 30 Wax 60 5.1 Use the information listed in the table and draw a bar graph showing the different melting temperatures for these substances. [3] Melting point in Degrees Celsins ("C) Q 10 20 3040 SO 60 Ice Chocolate Wax 5.2 Look at your graph and decide which substance melts at the lowest temperature. [1] 5.3 Look at your graph and decide which substance melts at the highest temperature. [1] 5.4 What is the name of the process when solid wax turns into a liquid? [1]

QUESTION 6 6.1 Complete the water cycle by filling in the missing words. Surface run-off Ground water c: [3] 6.2 Use the water cycle to explain in your own words how rain is formed. *(Use the picture and words above to help you.) [4]

QUESTION 7 Study the following pictures and answer the questions that follow. 4 Figure A: Square shape Figure B: Triangle shape 7.1 Which shape will loose its shape when you press on the corner? [1] 7.2 Suggest two ways how we can strengthen the shape? [2] 7.3 Which shape do you think is the strongest and why? [2] 7.4 Draw on Figure A below how you will reinforce the square. [1] Figure A: Square shape TOTAL = 40