1. Jeopardy ECOSYSTEMS CHEMISTRY HYDROSPHERE MICROBIOLOG Y Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final Jeopardy EARTH’S HISTORY

2. $100 ECOSYSTEMS Where is the largest amount of energy found in this food web? A. lion B. grass C. human D. wolf

3. $200 ECOSYSTEMS Which of these would be a tertiary consumer in this food web? A. wolf B. grass C. human D. lion

4. $300 ECOSYSTEMS Where do plants get most of the energy they need to live and grow? A. water B. soil C. air D. sunlight

5. $400 ECOSYSTEMS In the winter, the fur of the arctic fox is white. In summer, the fur darkens to a reddish brown. What most likely causes the fur of the fox to change color? A. the amount of sunlight present B. the fox’s habitat C. the fox’s genes D. the fox’s age

6. $500 ECOSYSTEMS In a food pyramid, which best explains why the number of organisms decreases from one trophic level to the next? A. Consumers at the lower level require more energy than the top-level consumers. B. Consumers at the top level require more energy than the lower-level consumers. C. The consumers are feeding on larger organisms that have less energy. D. The consumers are feeding on smaller organisms that have less energy.

7. $100 CHEMISTRY If a chemical reaction such as photosynthesis begins with 6 atoms of carbon (C), how many atoms of carbon (C) should be in the products? A. 12 atoms of carbon (C) B. 6 atoms of carbon (C) C. 3 atoms of carbon (C) D. 2 atoms of carbon (C)

8. $200 CHEMISTRY How does a balanced chemical equation satisfy the Law of Conservation of Mass? A. During a chemical reaction, the total amount of matter stays the same. B. During a chemical reaction, matter is destroyed. C. During a chemical reaction, one or more new substances are formed. D. During a chemical reaction, the total number of atoms increases.

9. $300 CHEMISTRY This chart describes an experiment using a sample of water and three solids made of different substances. Solid 1 sinks halfway down the water and remains suspended. Solid 2 sinks to the bottom. Solid 3 floats to the top of the water. Three different solids are dropped into a wide beaker of water. Which property of water is being tested? A. solubility B. cohesion C. polarity D. density

10. $400 CHEMISTRY What characteristic of aluminum allows it to be made into aluminum foil? A. It is dense. B. It is soluble. C. It is magnetic. D. It is malleable.

11. $500 CHEMISTRY Which pure substance is composed of more than one element? A. carbon B. gold C. water D. sodium

12. $100 HYDROSPHERE Why is water from an aquifer more likely to be cleaner than water from other sources? A. because it forms where fresh and salt water meet B. because it receives water directly from precipitation C. because it rises to the surface near the ocean D. because pollutants are filtered by rock and soil deep within Earth

13. $200 HYDROSPHERE In which oceanic zone do clams and crabs survive by burrowing in the sand? A. oceanic B. intertidal C. deep ocean D. open ocean

14. $300 HYDROSPHERE Which best describes the characteristics of a river basin? A. the land drained by a river and its tributaries B. the land formed when rivers create estuaries and marshes C. the land at the mouth of a river where water flows into the ocean D. the land formed as a result of a river flooding

15. $400 HYDROSPHERE Which factors can have the greatest effect on the health of a river system? A. type of soil and salinity B. nitrate levels and turbidity C. human consumption and pH D. natural disasters and tidal changes

16. $500 HYDROSPHERE In the United States, which is responsible for ensuring the safety of the country’s drinking water? A. Environmental Protection Agency (EPA) B. Food and Drug Administration (FDA) C. National Oceanic and Atmospheric Administration (NOAA) D. Center for Disease Control (CDC)

17. $100 MICROBIOLOGY Ten people became sick with the flu after attending a school dance. What is the scenario that could best explain how the people got sick? A. contact with environmental sources B. contact with an infected animal C. contact with a contaminated object D. contact with an infected person

18. $200 MICROBIOLOGY Malaria is a common disease in many countries. What is the cause of this disease? A. a virus B. a bacterium C. a fungus D. a parasite

19. $300 MICROBIOLOGY How can the rate of an infectious disease be drastically reduced? A. by taking medication daily B. by preventing transmission between people C. by wearing clean clothing daily D. by performing dental hygiene three times each day

20. $400 MICROBIOLOGY What is involved in creating genetically modified bacteria? A. allowing them to reproduce freely B. changing their food source C. using biotechnology techniques D. growing them on selected plants

21. $500 MICROBIOLOGY This chart shows the worldwide number of measles cases over twenty years. Worldwide Cases of Measles 1980- 3,800,000 1985- 2,800,000 1990- 1,400,000 1995- 800,000 2000- 1,000,000 Which is most likely the cause of the decline in measles cases from 1980 to 1990? A. Antibiotics C. Quarantines B. Chemotherapy D. Vaccinations

22. $100 EARTH’S HISTORY Which statement best describes the Law of Superposition? A. Each sedimentary layer of rock represents 1,000 years of Earth’s age, much like the rings of a tree. B. In undisturbed layers of sedimentary rock, the upper rock layers are older than the lower rock layers. C. In undisturbed layers of sedimentary rock, the lowest layers contain the older rocks. D. Rocks that form near volcanoes are older than surrounding rock.

23. $200 EARTH’S HISTORY What do earthquakes tell scientists about the history of the planet? A. Earth’s climate is constantly changing. B. The continents of Earth are continually moving. C. Dinosaurs became extinct about 65 million years ago. D. The oceans are much deeper today than millions years ago.

24. $300 EARTH’S HISTORY How do scientists know that some mountains were once at the bottom of an ocean? A. Freshwater rivers flow to the ocean. B. Saltwater fish are found in some mountain streams. C. Dinosaur bones have been discovered in the mountains. D. Marine fossils have been found on the peaks of some mountains.

25. $400 EARTH’S HISTORY What process is most responsible for the extinction of most species of plants and animals that have lived on Earth? A. gene mutation B. environmental changes C. selective breeding D. decrease in reproduction

26. $500 EARTH’S HISTORY Which would indicate that a series of fossils represent the evolution of the horse? A. All of the fossils were found in the same layers of rocks as horse fossils. B. All of the fossils are completely identical to horse bones. C. All of the fossils show similar structures to that of the modern horse. D. All of the fossils were located in the same place on Earth as horses.

27. Final Jeopardy A strawberry farmer finds that, after a hard freeze, some of his strawberries are still alive. Which best explains why these strawberries were able to survive? A. They have larger leaves to protect the fruit than the other strawberries. B. They have different genetic variations that cause them to be more resistant to cold temperatures. C. They are able to reproduce more quickly than the other strawberries. D. The color of the strawberries is darker, and they maintain their temperature better than other strawberries.

28. Final Jeopardy Answer B

29. Answers Ecosystems B D C B CHEMISTRY B A D C MICROBIOLOGY D B C D HYDRO D B A B A EARTH’S HISTORY C B D B C