Name:_____________________________________ Period:________ Date:_________________ Study Guide Read pages 4-13 and look at the True/False, Multiple Choice and Checking Concepts questions on pages 14 and 15. Read through and study all the papers you have received for this chapter, including the labs. You are responsible for all that information. Make sure you can answer or do the following: 1. Which branch of Earth Science would the following “jobs” belong to? Records the tides Studies the planet Jupiter Collects and studies rocks Studies the chemistry of the ocean Gathers information about the clouds Studies the effect of pollution of fish 2. Be able to do a density problem in the 3 step method. Remember your units. 3. Write an observation. Then give an inference based on the observation. 4. To have a good experiment, what number of independent variables should you have? 5. Go back to your measurement worksheets and make sure you can measure accurately on the diagrams. Remember your units. 6. Review the Periodic Table. (Atomic Number, Atomic Mass) 7. Know the parts of an atom. 9. Know and be able to describe the three types of heat transfer. 10. Know the three states of matter. 11. Be able to define and identify the following: 1. 2. 3. 4. Science Earth Science Astronomer Environmental Scientists 5. Geologist 6. Meteorologist 7. Oceanographer 8. Scientific Inquiry 9. Observation 10. Inference 11. Hypothesis12. Independent Variable (manipulated) 13. Dependent Variable (responding) 14. Data 15. Scientific Theory 8. Review Elements, Compounds and Mixtures. 1 Name:_____________________________________ Period:________ Date:_________________ Study Guide The Alvin is a very small submarine used by oceanographers, scientists who study the world’s oceans. Since 1964 the Alvin has carried scientists to depths of nearly 4 kilometers, enabling them to discover and explore ocean-floor features, collect data, and gather samples of deep-sea rocks and animals. The floor of the Atlantic Ocean is one of the most remote locations on Earth. The Atlantic averages more than 3,600 meters deep. That’s as deep as 116 Empire State Buildings sunk end-to-end. Because the water is so deep, no sunlight reaches the deep ocean floor. But with the help of the Alvin’s powerful lights, scientists are able to make observations of the ocean depths. On one expedition near an underwater mountain range, scientists in the vessel saw colonies of animals swarming around a structure called a “black smoker.” The “smoke” is actually hot water rising from openings in the sea floor. This hot water contains many minerals. Some of the animals around the black smoker were using the minerals for food. One of these animals was a kind of shrimp that appeared to have no eyes. The oceanographers knew that eyeless animals are common in deep, dark water. When they collected and studied some of the shrimp, the oceanographers discovered a pair of organs attached to a shrimp’s brain. The scientists inferred that these organs functioned as eyes. But this inference raised a question: Why do shrimp need eyes to survive in a place without light? By conducting an experiment, the scientists learned that these unusual eyes could detect extremely dim light. This conclusion led to a further question: What do the shrimp look at? Oceanographers observed that the shrimp lived only near black smokers. The oceanographers used this fact to develop a hypothesis. Their hypothesis was that black smoker vents are so hot that they glow and that this glow is what the shrimp’s eyes see. Another observation confirmed that water rising from vents can reach 340°C. The water then cools quickly as it mixes with cold sea water. As a result of this investigation, the scientists concluded that the shrimp’s eyes guide them toward the dim light to find food. Brighter light signals the shrimp to keep a distance from the hottest water near the vent. Answer the following question based on the paragraph. 1. What key questions did the scientists pose? What inference and hypothesis did they make? What conclusions did they draw? 2. By paying close attention to details and posing good questions, the oceanographers began the process that resulted in important scientific discoveries. Think about a familiar outdoor place that you like to visit. Describe the place from memory in as much detail as possible. 2 Name:_____________________________________ Period:________ Date:_________________ Study Guide Understanding Main Ideas Building Vocabulary If the statement is true, write true. If it is false, change the underlined word or words to make the statement true. From the list below, choose the term that best completes each sentence. oceanographer hypothesis inference astronomer variable controlled experiment _________________ 3. In experiments and activities, scientists and science students must remember to think about safety. _________________ 4. A hypothesis is a well-tested scientific concept that explains a wide range of observations. _________________ 5. Scientific methods include posing questions, developing and testing hypotheses, and drawing conclusions. _________________ 6. Observation is a method of learning about the natural world and the body of knowledge gained through that process. _________________ 7. Often scientists test hypotheses by conducting controlled experiments. 9. An interpretation based on your observation and knowledge is called a(n) _______________________. 10. A(n) ____________________might study the solar system or stars and galaxies. 11. A(n)_______________________ is a test of a hypothesis under conditions set up by the scientist. 12. A possible explanation for observations relating to a scientific question is called a(n) __________________________. 13. A(n) ______________________ is one of the factors that can change in an experiment. 14. A(n) ______________________ is a scientist who might study living _________________ 8. Geology, oceanography, meteorology, and things in the ocean’s depths astronomy are branches of environmental science. 3 Name:_____________________________________ Period:________ Date:_________________ Study Guide Multiple Choice True or False Write the letter of the correct answer on the line at the left. If the statement is true, write true. If it is false, change the underlined word or words to make the statement true. ______ 15. A well-tested concept that explains many observations is a(n) a. variable. b. model. c. controlled experiment. d. scientific theory. _________________ 20. A(n) conclusion is a possible explanation for observations relating to a scientific question. ______ 16. The study of Earth's solid parts is conducted by a. environmental scientists. b. oceanographers. c. geologists. d. meteorologists. _________________ 21. Astronomers study the universe beyond Earth. ______ 17. Knowledge about Earth and its place in the universe is called a. Earth science. b. observation. c. scientific theory. d. astronomy. _________________ 22. The system of measurement that scientists use is called the International System of Units. ______ 18. In a scientific investigation, which of the following steps follows the others? a. developing a hypothesis. b. designing an experiment. _________________ 23. Meteorology involves using sight, hearing, smell, c. drawing a conclusion. d. making observations. and sometimes taste to gather information. ______ 19. Sometimes scientists seek to imitate something in the real world by creating a(n) a. simulation. b. data bank. c. manipulated variable. d. hypothesis. _________________ 24. Observation often involves measurements to obtain data that can be expressed as numbers. 4 Name:_____________________________________ Period:________ Date:_________________ Study Guide Using Science Skills Short Answer 25. Posing Questions What questions would you ask yourself about the rock that was found? 28. What are the characteristics of a controlled experiment? What is the purpose of controlling variables? 27. How are observation and inference different? Imagine that you are hiking on a glacier. One of your companions has found an interesting rock stuck in the ice. You look at the rock and then you look at the rock in the mountains around you. This rock that was found does not look like the other rocks in the area. You want determine the source of the rock. You decide to start by observing the rock closely. 29. How would you describe the differences between environmental science and other branches of Earth science? 26. Inferring How could you use these questions to study rocks in other areas? How would studying rocks in other areas help you determine the source of the rock on the glacier? 5 Name:_____________________________________ Period:________ Date:_________________ Study Guide Building Vocabulary From the list below, choose the term that best completes each sentence. Atom Radiation Convection Density Conduction Compound Mixture Element 30. A(n) ____________________ is a substance in which two or more elements are chemically joined. 31. A(n)__________________ is the smallest unit of an element that retains the properties of that element. 32. A(n) ___________________ is a substance composed of a single kind of atom. 33. A(n) ____________________ is two or more substances that are mixed together but not chemically combined. 34. _________________ is a measure of how much mass there is in a volume of a substance. Building Vocabulary From the list below, choose the term that best completes each sentence. Heat Neutron Energy Nucleus Electron Temperature Proton 38.__________________ is a neutral subatomic particle in an atom. 39. __________________is the average amount of energy of motion of each molecule of a substance. 40.__________________ is the positively charged subatomic particle in an atom. 41. _________________is the ability to do work or cause change. 35. The transfer of energy through empty space is called __________________. 42. _________________ is the energy transferred from a hotter object to a cooler one. 36. The transfer of energy through a liquid or fluid is called __________________. 43.__________________ is the negatively charged subatomic particle in an atom. 37. The transfer of energy through direct contact is called __________________. 44.__________________ is the central part of an atom where the proton and neutron exist. 6 Name:_____________________________________ Period:________ Date:_________________ Study Guide 45. Identify the following Elements. Determine the number of protons, neutrons and electrons in each. _____________ 20 _____________ 28 40.08 58.69 P= N= E= 46. Volume = 50mL Density = 12 g/ cm3 Mass= ? 49. What is the density of water? 50. What will happen to an object that has a density less than water? 51. Convert the mass 620g to kg. P= N= E= 52. Identify the phase in each diagram. Circle the densest, and put a star next to the least dense. 47. Mass= 250g Volume = 20mL Density = ? 48. Mass= 620g Density = 2g / cm3 Volume = ? 7 EI 0 Study Guide Name:_____________________________________ Period:________ Date:_________________ Study Guide 53. Draw in what will happen when a candle is lit under the bottle. Be sure to label where the fluid is less dense, where it becomes dense and label the type of energy transfer does this represent? 55. Use the metric ruler to determine the _________________. B. C. A. A. B. C. 56. Use the ____________ ______________ to determine the liquid ________________. 54. Determine the mass displayed on the triple beam ______________. D. E. 8