grade 7 Science Unified Test 1 quarter.docx - SCIENCE GRADE 7 FIRST UNIFIED QUARTER EXAMINATION NAME GRADE/SECTION SCHOOL_SCORE Multiple Choice Encircle

grade 7 Science Unified Test 1 quarter.docx - SCIENCE GRADE...

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SCIENCE GRADE 7 FIRST UNIFIED QUARTER EXAMINATION NAME:_________________________________ GRADE /SECTION:___________________ SCHOOL:__________________________________SCORE:___________________________ Multiple Choice: Encircle the letter of the correct answer. 1. How is a hypothesis tested? a. by inference b. by observation c. by a conclusion d. by experimentation 2. A person guesses that a chemical can cause bleaching. Under what process does it fall? 3. Which of the statement is true? a pattern in nature A doctor performed several medical tests on a patient, like X-ray, blood, urine and stool test. 4. Which steps of the scientific method did the doctor do? Romeo planted mongo seeds separately in cans using the same kind of fertilizer. After a few days, the seeds germinated and grew healthy but after three weeks only one plant remained healthy. 5. What conclusion can Romeo draw from this? a. the seeds should not be planted in cans b. the soil in all cans must be changed c. plants should be watered twice daily d. some plants grow healthy while others die because of certain variables For question 6-7: A group of students was asked to investigate how well powdered juice dissolves in cold and in hot water? I. The temperature II. The amount of powdered juice that completely dissolves in cold water. III. The amount of powdered juice that completely dissolves in hot water. IV. How long it takes for the powdered juice to completely dissolve. 6. What is the dependent variable in the investigation? a. I only b. II and III c .I,II and III d. II, III and IV 7. What is the independent variable? For question number 8 refer to the paragraph below. A student investigates the nature of an unknown substance. He decided to heat up a sample of a blue-green powder and eventually it turned into colorless gas and a black solid. All these materials are substances.
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8. Based from the paragraph given. What was the nature of the original substance?
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