7th Grade Science Test Unit 1 PDF

Here is the complete 70-question science test based on your outline, with multiple choice, fill-in-the-blank, and true/false questions, as requested. The answer key is provided separately. --- ### **7th Grade Science Test** **Unit 1 Topics** **Total Questions**: 70 **Name**: ____________________ *...

Here is the complete 70-question science test based on your outline, with multiple choice, fill-in-the-blank, and true/false questions, as requested. The answer key is provided separately. --- ### **7th Grade Science Test** **Unit 1 Topics** **Total Questions**: 70 **Name**: ____________________ **Date**: ____________________ --- ### **Part 1: Multiple Choice (30 questions)** 1. What is the first step in the scientific method? a) Hypothesis b) Experiment c) Observation d) Conclusion 2. A hypothesis must be: a) Based on opinions b) Testable c) Already proven d) Derived from data 3. Which of the following is an example of a testable hypothesis? a) If I water my plants every day, then they will grow faster. b) If I am happy, then everyone will like me. c) If it rains, then it’s cloudy. d) If I study, then the test will be easy. 4. In an experiment, the group that receives no treatment is called the: a) Experimental group b) Independent group c) Dependent group d) Control group 5. A characteristic of a "good experiment" is: a) Multiple variables b) Bias towards a specific outcome c) Repeatability d) Unknown variables 6. In an experiment, what is the independent variable? a) The variable being measured b) The variable being changed c) The constant variable d) The variable that stays the same 7. Why is it important to have a large sample size in an experiment? a) To make the experiment easier b) To increase the validity of the results c) To reduce time d) To avoid bias 8. In an experiment testing plant growth, the height of the plant is the: a) Independent variable b) Dependent variable c) Constant d) Control variable 9. A constant in an experiment is: a) A variable that changes b) A variable that stays the same c) The independent variable d) The dependent variable 10. Why should experiments have multiple trials? a) To get as many different results as possible b) To make the experiment more complicated c) To ensure reliability and accuracy d) To change the hypothesis 11. Data that can be counted or measured is called: a) Qualitative data b) Quantitative data c) Descriptive data d) Inconclusive data 12. Qualitative data refers to: a) Measurements and numbers b) Data that can be counted c) Descriptive data based on observations d) Data gathered from graphs 13. Which axis represents the dependent variable on a graph?  a) X-axis b) Y-axis c) Z-axis d) None of the above 14. In an experiment, if "temperature" is the independent variable, then the dependent variable could be: a) Type of thermometer b) Time of day c) Growth rate of bacteria d) Speed of light 15. "DRY MIX" is a mnemonic that helps you remember: a) Data recording techniques b) Which variables to measure c) Graphing rules for dependent and independent variables d) Steps in the scientific method 16. Which of the following is an example of selective windowing in an experiment? a) Reporting all collected data b) Only using data that supports the hypothesis c) Using data from multiple trials d) Increasing sample size to improve accuracy 17. Which of the following statements is true about scientific theories? a) Theories are guesses b) Theories can never change c) Theories explain why something happens d) Theories are proven facts 18. Scientific laws describe: a) What happens under certain conditions b) Why something happens c) The history of experiments d) Opinions of scientists 19. In an experiment, the variable that the scientist changes is called: a) Dependent variable b) Control variable c) Independent variable d) Constant 20. Which of the following describes causation? a) When two variables are correlated  b) When one variable causes another to change c) When variables are unrelated d) When data shows no patterns 21. Which of the following is *not* a constant in an experiment? a) Amount of water given to plants in all groups b) The type of soil used c) The height of the plants d) The amount of sunlight each plant receives 22. Which of the following best describes an experimental group? a) The group that stays constant throughout the experiment b) The group that does not receive the treatment c) The group that receives the treatment or variable being tested d) The group that controls all variables 23. What is the purpose of a control group in an experiment? a) To receive the treatment b) To serve as a basis for comparison c) To change the independent variable d) To record qualitative data 24. When graphing, the independent variable is placed on the: a) X-axis b) Y-axis c) Z-axis d) Data table 25. How can bias affect an experiment? a) It improves the accuracy of the results b) It reduces the reliability of the experiment c) It makes the experiment more reliable d) It eliminates the need for multiple trials 26. What type of graph would best show how two continuous variables relate? a) Bar graph b) Pie chart c) Line graph d) Scatter plot 27. The ability to reproduce results consistently is called: a) Bias b) Reliability c) Hypothesis  d) Theory 28. In a good experiment, the sample size should be: a) As small as possible b) Randomly chosen c) Large enough to minimize random errors d) Chosen based on convenience 29. Which of the following describes correlation? a) A cause-effect relationship b) One variable always changes another c) Two variables change together without necessarily affecting each other d) There is no relationship between variables 30. What is a hypothesis? a) An observation b) A testable statement or prediction c) A proven fact d) A scientific law --- ### **Part 2: True or False (20 questions)** 31. A hypothesis can be proven true in every case. True / False 32. The control group is used as a comparison to the experimental group. True / False 33. An experiment that is repeatable is not reliable. True / False 34. Quantitative data is descriptive and cannot be measured in numbers. True / False 35. The independent variable is always placed on the Y-axis. True / False 36. Constants in an experiment are factors that remain unchanged. True / False 37. Scientific laws explain why something happens. True / False 38. Selective windowing refers to including all data, regardless of whether it supports the hypothesis. True / False 39. Large sample sizes make an experiment less accurate. True / False 40. A dependent variable is the one that is manipulated by the scientist. True / False 41. The "If...then..." structure is often used to state a hypothesis. True / False 42. Qualitative data can include descriptions like color, texture, or sound. True / False 43. In a good experiment, only one variable is changed at a time. True / False 44. A good hypothesis should be practical and measurable. True / False 45. Graphs are used to help interpret and visualize data collected from experiments. True / False 46. A good experiment should have bias to ensure a desired result. True / False 47. Scientific theories and scientific laws are the same thing. True / False 48. Repeatable experiments ensure more reliable results. True / False 49. Causation means that one variable directly affects another variable. True / False 50. Graphs should always include labeled axes and a title. True / False --- ### **Part 3: Fill in the Blank (20 questions)** 51. A ___________ variable is the variable that is measured in an experiment. 52. The group in an experiment that does not receive the treatment is the ___________ group. 53. A hypothesis should always be ___________ so that it can be tested through experiments. 54. Data that includes observations but not numbers is called ___________ data. 55. The ___________ axis on a graph is used to represent the independent variable. 56. One feature of a good experiment is that it only changes ___________ variable at a time. 57. The ___________ variable is the one that the scientist intentionally changes in an experiment. 58. If data from multiple trials is consistent, it increases the experiment’s ___________. Continuing from where we left off, here are the remaining questions to complete the test. --- ### **Part 3: Fill in the Blank (Continued)** 59. A ___________ sample size usually leads to more accurate experimental results. 60. In science, a ___________ explains why certain phenomena occur, while a law describes what happens under specific conditions. 61. The variable that stays constant throughout the experiment is called the ___________. 62. In a ___________ experiment, the researcher manipulates one variable to see its effect on another while keeping all other variables the same. 63. ___________ is the term used to describe data that can be observed and recorded using numbers. 64. The ___________ variable is also known as the responding variable because it responds to changes made in the independent variable. 65. Data should be recorded in a ___________ to help organize observations and measurements. 66. An ___________ is a statement based on observations, which can be used to help form a hypothesis. 67. ___________ is a technique used to ensure that the same procedure is followed in multiple trials of an experiment. 68. A ___________ experiment can be repeated with similar results, which increases confidence in the findings. Nice 69. The scientific method helps eliminate ___________ by requiring objective, measurable, and testable data. 70. Scientists often use ___________ to explain complex phenomena, which can be tested and supported by experiments. — ### **Answer Key** --- ### **Part 1: Multiple Choice** 1. c 2. b 3. a 4. d 5. c 6. b 7. b 8. b 9. b 10. c 11. b 12. c 13. b 14. c 15. c 16. b 17. c 18. a 19. c 20. b 21. c 22. c 23. b 24. a 25. b 26. c 27. b 28. c 29. c 30. b --- ### **Part 2: True or False** 31. False 32. True 33. False 34. False 35. False 36. True 37. False 38. False 39. False 40. False 41. True 42. True 43. True 44. True 45. True 46. False 47. False 48. True 49. True 50. True --- ### **Part 3: Fill in the Blank** 51. Dependent 52. Control 53. Testable 54. Qualitative 55. X 56. One 57. Independent 58. Reliability 59. Larger 60. Theory 61. Constant 62. Controlled 63. Quantitative 64. Dependent 65. Data table 66. Inference 67. Standardization 68. Repeatable 69. Bias 70. Models --- This completes the 70-question science test along with the answer key. Let me know if you need any changes or further assistance!