Science EOG Preparation

1. Science EOG Preparation Mrs. Crumpler Irwin Academic Center 2013-2014

2. General Tips for Taking Science Tests • Read each question carefully • Take a close look at any picture, graph, or table that appears with the question. • Read each answer choice carefully. • Use your understanding of science to get rid of wrong answer choices • Answer every question, even if you have to take an educated guess. • Don’t let difficult questions slow you down. • Check your answer • Relax

3. The Nature of Science • Review 1: Scientific Investigations • Review 2: Observing and Classifying • Review 3: Measuring • Review 4: Recording and Interpreting Data • Review 5: Technology and Society

4. Review 1 – Scientific Investigations Vocabulary • Conclusion • Controlled variable • Data • Dependent variable • Evidence • Experiment • Hypothesis • Independent variable • Inference • Inquiry • Scientific method • variable

5. Review 1 – Scientific Investigations 1. Which of the following phrases bestdescribes the scientific method? • correct laboratory procedures • a set of rules on how to act like a scientist • a flexible approach to learning about the world • a step-by-step way to get the right answer each time • Which of the following is the bestexample of a hypothesis? • Owls are the meanest birds in all the forest. • The speed of a rabbit and its diet are somehow related. • Einstein was probably the smartest scientist of all time. • There is no way to improve the way that science is done.

6. Review 1 – Scientific Investigations • Thaj had an aquarium with goldfish and turtles. One day, he switched brands of fish food for his goldfish. After about a week of using the new food, his turtle died. Without any further evidence, which of the following statements is a proper scientific claim? • Because the two events happened at the same time, the food must have killed the turtles. • Because the goldfish are still alive, whatever, killed the turtle does not kill goldfish. • Because there isn’t enough information, it is useless to wonder why the turtles died. • There may have been something in the new food that led to the deaths of the turtles.

7. Review 1 – Scientific Investigations • If Myles wanted to find out what kind of food causes his fish to grow the most, which of the following would be an appropriate independent variable? • water level • fish food • type of turtle • water temperature

8. Review 1 – Scientific Investigations • Jada placed a beaker upside down over a water plant in an aquarium. After several weeks, she observed that the water level in the beaker had dropped. Jada’s experiment can be used to address which of the following science-related questions? • Which plant food works best? • How much water can most beakers hold? • Do water plants produce any gas over time? • Can plants survive if they put into ice-cold water?

9. Review 1 – Scientific Investigations • Marissa did an experiment in class and got one set of results. She did the experiment again and got very different results. What should Marissa do next? • Ignore the results of the second experiment. • Assume that there were mistakes in the first experiment. • Repeat the experiment and compare all three sets of results. • Give up the experiment and perform a new one. • Jayvion wants to learn more about the feeding habits of hummingbirds. What steps should Jayvion take in order to best study the patterns of hummingbirds? • form a hypothesis, conduct experiment, record data, make a conclusion • conduct experiment, form a hypothesis, make a conclusion, record data • form a hypothesis, record data, conduct experiment, make a conclusion • record data, form a hypothesis, make a conclusion, conduct experiment

10. Review 2 - Observing and Classifying Vocabulary • classification • explanation • fair test • inference • observation • trial • variable

11. Review 2 – Observing and Classifying • Which of the following is an inference? • Roses can produce large red blooms. • A tornado probably destroyed that barn. • Bees gather nectar and make honey with it. • The Roanoke River empties into the Atlantic Ocean. • Emmanuel and Samuel are running a scientific investigation to find out whether their new freezer can freeze water more quickly than their old one. Which of the following would be the least useful item of data that they could collect? • the temperature in the new freezer • The height and weight of the new freezer • The amount of water placed in each freezer • The time it took to freeze a cup of water in the old freezer

12. Review 2 – Observing and Classifying • Which of the following could be used to group carrots and pumpkins together? • Color only • Color and leaves • Color and where it is grown • Leaves and where it is grown

13. Review 2 – Observing and Classifying Dr. Crumpler has been counting the number of elephants that come to drink from a stream each day. He obtains the following results: What is the most valid inference Dr. Crumpler could make from his data? • Each elephant drank more water on Thursday. • Dr. Crumpler probably miscounted the number of elephants on Thursday. • Lions were scaring the elephants away from the stream on every day except Thursday. • Another herd of elephants may have passed through the area on Thursday.

14. Review 2- Observing and Classifying • The organisms shown below have been placed in order by one characteristic. Which characteristic of the organisms is most likely being used to place them in order? • the size to which they can grow • the number of legs that they have • the fastest speed they can reach • the type of food that they eat

15. Review 2 – Observing and Classifying • What is the best way to make sure a measurement is accurate? • Make a good estimate • Have someone else measure for you. • Take the measurement several different times. • Compare your guest with your measurement. • Look at the following classification key. According to the key, what kind of animal is the alligator? • bird • fish • reptile • mammal

16. Review 3 - Measuring Science Instruments

17. Review 3 - Measuring • Which instrument could measure the volume of a substance? • graduated cylinder • spring scale • balance • Thermometer • Rhea wishes to see the parts of a tiny flower more closely. What scientific instrument would she most likely use? • telescope • graduated cylinder • hand lens • eyedropper

18. Review 3 - Measuring 3. Which units would be best to measure the length of a housefly’s body? • milliliters • millimeters • Grams • Meters • Students in Mrs. Crumpler’s class wanted to find out which of their skateboards is the fastest at rolling down a hill. Which of the following scientific instruments would provide the most useful data? • meterstick and stopwatch • telescope and camera • microscope and balance • barometer and thermometer

19. Review 3 - Measuring • What would you use to measure the volume of a cup of soup? • ruler • thermometer • graduated cylinder • gram scale • Jayvion is about 5ft tall and is standing next to an apple tree. About how tall is the tree? • 10 ft • 15 ft • 20 ft • 25 ft

20. Review 4 – Recording and Interpreting Data Vocabulary Bar graph Circle graph Conclusion Data Evidence Interpret Journal Line graph table

21. Review 4 – Recording and Interpreting Data • Christopher wants to figure out how much protein certain foods contain. To do this, he puts a special chemical into each food and watches for a color change. If the chemical changes from blue to violet, then that means that food contains proteins. According to the table, all of the following foods contain at least some protein except • chicken soup. • egg white. • heavy cream. • orange juice.

22. Review 4 – Recording and Interpreting Data • Suppose that a friend showed you a list of people that he had interviewed for a school project. He asked them their ages, jobs, and income. Which of the following should he use to organize and interpret the data he has gathered? • a bar graph • a table • a line graph • a pie chart

23. Review 4 – Recording and Interpreting Data • A group of students put four different substances on the same heat source. The students then measured how the temperature of each substance changed over 10 minutes. They put their results on the graph below. • water • vegetable oil • aluminum • lead

24. Works Cited Be sure to include print and electronic sources and put them in alphabetical order.

25. Works Cited Be sure to include print and electronic sources and put them in alphabetical order.

26. Works Cited Be sure to include print and electronic sources and put them in alphabetical order.

27. Works Cited Be sure to include print and electronic sources and put them in alphabetical order.

28. Works Cited Be sure to include print and electronic sources and put them in alphabetical order.

29. Works Cited Be sure to include print and electronic sources and put them in alphabetical order.

30. Works Cited Be sure to include print and electronic sources and put them in alphabetical order.