1. The ________ system is for ease of understanding and reporting measurements in groups - PowerPoint Presentation

1. The ________ system is for ease of understanding and reporting measurements in groups of 10. metric 1

2. A possible explanation for a scientific question is a/an _____ hypothesis 2

3. All living things _______ to make more living things. reproduce 3

4. What is the information gathered from experiments called? data 4

5. What is the testable procedure that scientists use called? experiment 5

6. Place the following microscope procedures in correct order: SlideLow objectiveDiaphragmCourse adjustmentFine adjustment C, a, b, d, e 6

7. An experiment is a test of the _________. Hypothesis 7

8. The steps commonly used by scientists in gathering information to test hypothesis and solve problems are called the _____. Scientific method 8

9. A group of organisms that can mate with each other and produce offspring that are capable of reproducing are ____. species 9

10. Metric unit for mass is _________ gram 10

11. Certain facts of nature are called _____and are generally known to be true laws 11

12. What does this symbol mean? Safety goggles required 12

13. A scientist conducts an experiment to test the effect of light on plant growth. In each experiment, three plants on the same variety each were given 10 ml of water. One plant is exposed to full sunlight for 8 hours, one is exposed to full sunlight for 4 hours, one plant is kept in a dark room. Plant height is measured after two weeks. What is the independent variable in this experiment? Amount of sunlight 13

14. A scientist conducts an experiment to test the effect of light on plant growth. In each experiment, three plants on the same variant of each given 10 ml of water. One plant is exposed to full sunlight for 8 hours, one is exposed to full sunlight for 4 hours, one plant is kept in a dark room. Plant height is measured after two weeks. What is the dependent variable in this experiment? Plant height 14

15. The ______ or an organism refers to the changes during the life cycle. development 15

16. The metric unit for length is ________. meter 16

17. The metric unit for time is _______ second 17

18. With a microscope place the slide such that when looking through the _____, the slide is in the ____ of ____. Objective Field of view 18

19. The regulation of an organism’s internal environment to maintain conditions suitable for its survival is called _____. homeostasis 19

20. Always carry the microscope by the ____ and _____ Arm and base 20

21. The compound light microscope magnifies a maximum of about ____ times. 1000 21

22. The electron microscope magnifies about ____ times. 500,000 22

23. Anything that posses ALL the characteristics of life is known as a/an _________ organism 23

24. The (independent or dependent) variable is the one condition in an experiment that is tested. Independent 24

25. ________ is the study of life. Biology 25

26. Living things depend on each other, DO NOT exist in _________. isolation 26

27. Living things _______ with other living things and the world. interact 27

28. Living things are part of the ______ of nature balance 28

29. Humans need plants to supply us with _____. Oxygen and food 29

eyepiece Body tube Arm Stage Course adj. f ine adjustment Base nosepiece objective Stage clips diaphragm Light source objective objective Take a quiz!

31. Regulation of an organism’s internal environment to maintaining conditions suitable for its survival is called ___________________. (Balance in nature) Unit 1 homeostasis

32. Common Steps Used By Scientist to Gather information and Answer Questions are _________________ 33. A ______________ is an explanation for a question or problem that can be tested.34. An _____________ is a test of a hypothesis by collecting information under controlled conditions. Unit 1 Scientific methods hypothesis experiment

Two groups of experiments Chapter 1.2 p. 6 What is a controlled experiment? Unit 1 Control Group The part of the experiment that represents the standard conditions. 35. The _______________ variable is the one condition in an experiment that is tested. 36. The ______________ variable is the condition that changes because of a change in the independent variable. independent Experimental Group Is the test group that receives experimental treatment. dependent

Scientist seek information 36. Information obtained from experiments is called ___________Analyze the results to decide if the data supports the hypothesisRepeat the experiments to gather more data.37. A hypothesis that is supported by many different investigations and observations becomes a _______ Chapter 1.2 p. 6 Methods of Biology Unit 1 Data theory

Theories and Laws 38. In science, a hypothesis that is supported by many separate observations and experiments over a long period of time becomes a _______A theory is an explanation that is supported by a large body of evidence obtained from many investigations and observations39 and 40. Certain FACTS of nature called _________ or _________ that are generally known to be true. Example: Law of Gravity Chapter 1.2 p.11-18 Methods of Biology Unit 1 theory principals laws

Steps of the Scientific Method (Scientific Problem Solving)41. OBSERVING 42. MAKE A HYPOTHESIS43. CONDUCT EXPERIMENT or COLLECT DATA44. CONCLUSION: ANALYZE YOUR DATA and DRAW CONCLUSION 45. PUBLISH RESULTS 46. FORM A THEORY Chapter 1.2 (text book 11-18) Methods of Biology Unit 1

Other Lab Equipment BeakersTest tubesFlask What does all this equipment measure In the SI system ? Volume in liters. 47. 48. 49. 50.

Section 1.2 Summary – pages 11-18 Biologists use a variety of tools to obtain information in an investigation.Using tools Common tools include beakers, test tubes, and Petri dishes , used to culture bacteria . 51

Graduated cylinder: Thermometer:What does this equipment measure In the SI system? Temperature in Celsius. 54. What does this equipment measure in the SI system? Volume in liters. 52. 53.

Bunsen burner: Triple beam balance:57. What does this equipment measure In the SI system? Mass in grams 55. . What is this called? 56. What is this called?

58. What does the following measure?What are the SI units? volumeLiters, milliliters 59. What tool would one use to measure the volume of an ? Beaker or graduated cylinder with water. Measure before and after, difference is volume of eraser.

60. What is another tool used to measure volume? Graduated cylinder Flask

61. What is this tool called? Petri dish 62. What is the medium found in the Petri Dish? Agar 63. What is grown on the agar? Bacteria Colonies

64. What would one use to measure the mass of keys ? Triple beam balance 65. What are the SI units used ? Kilograms or grams

66. What would one use to measure the length of your ? 67. What units are used to measure length using SI? Meter

Section 1.2 Summary – pages 11-18 A safety symbol is a symbol that warns you about a danger that may exist from chemicals, electricity , heat, or procedures you will use. 68. Sharp Object Safety 69. Clothing Protection Safety 70. Eye Safety 71. Chemical Safety Maintaining safety ( video )

A scientist conducts an experiment to test the effect of light on plant growth. In each experiment, three plants of the same variety are each given 10 mL of water. One plant is exposed to full sunlight for 8 hours, one is exposed to full sunlight for 4 hours, and one plant is kept in a dark room. Plant height is measured after two weeks. What is the independent variable in this experiment? 72. What is the independent variable in this experiment?A. Soil volume C. Plant HeightB. Amount of Sunlight D. Amount of water

Section 2 Check 73. Which of the following is the group in an experiment in which all conditions are kept the same? D. control C. experimental B. independent variable A. standard

Section 2 Check A hypothesis is an explanation for a question or problem and can be formally tested . An observation is something that has been noticed, often generating questions that lead to the formation of a hypothesis. 74. 75.

Section 2 Check 76. A scientist conducts an experiment to test the effect of light on plant growth. In each experiment, three plants of the same variety are each given 10 mL of water. One plant is exposed to full sunlight for 8 hours, one is exposed to full sunlight for 4 hours, and one plant is kept in a dark room. Plant height is measured after two weeks. What is the independent variable in this experiment? Soil volume Amount of sunlight Plant height Amount of water

Section 2 Check 77. Which of the following is the group in an experiment in which all conditions are kept the same? D. control C. experimental B. independent variable A. standard

Section 3 Check Which of the following is an SI unit?78. D. yard C. second B. pound A. foot

Chapter Assessment 79. What results in an increase in the amount of living material in an organism?D. energy C. stimuli B. development A. growth

Chapter Assessment 80. Which of the following enables an organism to maintain homeostasis? D. experimentation C. energy B. environment A. evolution

Chapter Assessment 81. In a controlled experiment, the __________ is the observed condition that results from the change of the __________. D. independent variable, hypothesis C. dependent variable, control group B. dependent variable, independent variable A. independent variable, dependent variable