Final Revision Science G4 ( ) True/False Indicate whether the statement is true or false.

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1 Final Revision Science G4 ( ) True/False Indicate whether the statement is true or false. 1 Scientists use thermometer to measure temperature. 2 Scientists use meter stick to measure length. 3 Scientists use telescopes to make observation. 4 Scientists use graduated cylinder to measure volume. 5 Scientists use spring scale to measure weight. 6 Goggles help keep your eyes safe. 7 Gloves protect your hands. 8 Apron protect your ears. 9 Headphones protect you from small particles in the air. 10 A mask protects your clothes. Multiple Choice Identify the choice that best completes the statement or answers the question. 11 Which type of conclusion does not rely on facts and evidence? A a guess C an inference B an estimate D a prediction 12 The measurement you would use below to measure weight. A newton C liter B meter D centimeter 13 I have build a protype.iwant to see if it work. Which step of the design process should I do? A Test the protype. C Identify the problem. B Evaluate and redesign. D Communicate results. 14 Every scientific question leads to another question. If scientists were to discover a new animal, what kind of questions could they ask? A all the questions. C Where does this animal live? B What kind of food does this animal eat? D Why did not we find this animal earlier?

2 15 Why do scientists communicate with each other? A to use what they know together. C in order to outsmart other scientists. B to compete againist each other. D to lie to each other. 16 Which of these rules will not keep you safe in a science laboratory? A Listen to your teacher. C Clean up spills immediately. B Make sure to do the experiment as fast as D Keep your area clean and organized. possible. 17 You are trying to measure a piece of paper.which is a measurement and not a guess? A pretty tall. C a few centimeter. B 11 centimeter. D short. 18 How many grams are in a gilogram? A 50 C 500 B 1000 D Science and technology are interrelated fields.what does this mean? A New technology can help science. C New science can help people make better technology. B both a and c. D none of them. 20 If you find a problem with your prototype, what step of the design process should you do? A build a prototype C communicate results B evaluate and redesign D buy materials 21 Pierre Curie discovered that quartz crystal can be used to keep time.what technology was made because of this discovery? A metronomes C watches B sundials D bicycles 22 The Third step in the design process is to build a prototype.what is a prototype? A a detailed drawing that explains the C the first version of the solution. solution. B The second version of the solution. D a version of the solution that is not for sale. 23 Which is not a step of the design process? A develop multiple solutions. C buy materials. B evaluate and redesign. D test a prototype. 24 What can scientists do to understand the way dolphins communicate? A Collecting some pictures about dolphins. C Observing dolphins over time. B None of them. D Observing dolphins just once. 25 What is the variable that scientists measure during an investigation? A All of them C Dependent variable B Controlled variable D Independent variable 26 The main goal of the design process is to... A draw a design C test a machine B represent data D find a solution to proplem 27 Which of the following is a an observation that cannot be measured A Volume C Temperature B Length D Color 28 Unit of measuring mass A Liter C milliliter B Meter D Gram 29 Unit of measuring volume A Kilogram C centimeter B millimeter D milliliter

3 301 liter (L) =...milliliters(ml). A 10 C 100 B D 1000 Completion Complete each statement Is the process of studying the natural world 32 To... is to make a guess based on observation. 33 To... is to make a conclusion based on observation. 34 To... is to sort objects into groups is data that comes from observations or experminets is the standard system of units that scientists use. 37 A possible answer to a question is called is the process in which engineers use knowledge in science and mathematics to find solutions to problems. 39 The... is the steps engineers use to develop a product or solve problems. 40 A... is the first version of the solution to test the design.

4 Final Revision Science G4 ( ) Answer Section TRUE/FALSE 1 T 2 T 3 T 4 T 5 T 6 T 7 T 8 F 9 F 10 F MULTIPLE CHOICE 11 A 12 A 13 A 14 A 15 A 16 B 17 B 18 B 19 B 20 B 21 C 22 C 23 C 24 C 25 C 26 D 27 D 28 D 29 D 30 D COMPLETION 31 Science 32 Predict 33 Infer 34 Classify

5 35 Evidence 36 (SI) or The International System of Units 37 a hypothesis 38 Engineering 39 design process 40 prototype