Brain-A-Thon 2014

1. Brain-A-Thon 2014 Science Stuff

2. The early theory of plate tectonics - the idea that continents move and collide - was best supported by: • matching fossils found on the continents of Africa and South America • glacier deposits far from where glaciers exist today • very thick sediments at the mouths of rivers • sudden volcanic activity from dormant volcanoes

3. The early theory of plate tectonics - the idea that continents move and collide - was best supported by: • matching fossils found on the continents of Africa and South America • glacier deposits far from where glaciers exist today • very thick sediments at the mouths of rivers • sudden volcanic activity from dormant volcanoes

4. A neutral atom of calcium contains how many valence electrons ? • 3 • 2 • 1 • 20

5. A neutral atom of calcium contains how many valence electrons ? • 3 • 2 • 1 • 20

6. Which energy transformation describes the conversion involved as carbon compounds in wood are burned ? • chemical energy is converted into thermal energy • thermal energy is converted into chemical energy • potential energy is converted into chemical energy • chemical energy is converted into potential energy

7. Which energy transformation describes the conversion involved as carbon compounds in wood are burned ? • chemical energy is converted into thermal energy • thermal energy is converted into chemical energy • potential energy is converted into chemical energy • chemical energy is converted into potential energy

8. What is the proportion of magnesium to oxygen (Mg : O) be in this ionic compound ? • 2 : 1 • 1 : 1 • 1 : 2 • 3 : 1

9. What is the proportion of magnesium to oxygen (Mg : O) be in this ionic compound ? • 2 : 1 • 1 : 1 • 1 : 2 • 3 : 1

10. A driver is headed N at 50 mph with a box seated next to him. What could the driver do that would cause him to observe the box appear to slide to the west ? • apply the brakes • accelerate to 60 mph • make a turn to the east • make a turn to the west

11. A driver is headed N at 50 mph with a box seated next to him. What could the driver do that would cause him to observe the box appear to slide to the west ? • apply the brakes • accelerate to 60 mph • make a turn to the east • make a turn to the west

12. Which element does this model represent ? ?

13. Oops - wrong model !

14. Which element does this model represent ? • Argon • Xenon • Sulfur • Oxygen

15. Which element does this model represent ? • Argon • Xenon • Sulfur • Oxygen

16. What % of plants will be resistant to mold ? The alleles are: M = resistant to mold m = no resistance to mold The cross : MM x Mm • 0 % • 25 % • 50 % • 100 % M M M m

17. What % of plants will be resistant to mold ? The alleles are: M = resistant to mold m = no resistance to mold The cross : MM x Mm • 0 % • 25 % • 50 % • 100 % M M M m

18. Identify the products of the combustion reaction: CH4 + O2 • NH3 + CO • SO2 + CO2 • CS2 + O2 • H2O + CO2

19. Identify the products of the combustion reaction: CH4 + O2 • NH3 + CO • SO2 + CO2 • CS2 + O2 • H2O + CO2

20. Which cart has the greatest gravitational PE ? ( PE = mass * g * height ) Assume all carts and blocks are identical • 1 • 2 • 3 • 4

21. Which cart has the greatest gravitational PE ? ( PE = mass * g * height ) Assume all carts and blocks are identical • 1 • 2 • 3 • 4

22. Two different metal strips are placed in a solution of acid as shown. What tells us that ions are forming ? • the solution becomes less acidic and turns green • a current forms between the strips of metal • the solution emits an odor • the strip begin to corrode

23. Two different metal strips are placed in a solution of acid as shown. What tells us that ions are forming ? • the solution becomes less acidic and turns green • a current forms between the strips of metal • the solution emits an odor • the strip begin to corrode

24. The diagram is a x-section of the ocean floor. Where would the youngest crust be located ? • 1 • 2 • 3 • 4 1 2 3 4 3 2 1

25. The diagram is a x-section of the ocean floor. Where would the youngest crust be located ? • 1 • 2 • 3 • 4 1 2 3 4 3 2 1

26. The picture shows us four forces acting on this plane while in flight. What causes the force indicated by X ? • air friction • gravity • magnetism • force exerted by the engine

27. The picture shows us four forces acting on this plane while in flight. What causes the force indicated by X ? • air friction • gravity • magnetism • force exerted by the engine

28. These diagrams illustrate how snow forms and deposits along the southern and eastern shores of the Great Lakes. This process is known as • blizzarding • lake effect • winter fetch • temperate icing

29. These diagrams illustrate how snow forms and deposits along the southern and eastern shores of the Great Lakes. This process is known as • blizzarding • lake effect • winter fetch • temperate icing

30. Which structure(s) will identify this organism as a prokaryote ? • cytoplasm and ribosomes • plasmid and nucleoid • ribosomes • cell wall

31. Which structure(s) will identify this organism as a prokaryote ? • cytoplasm and ribosomes • plasmid and nucleoid • ribosomes • cell wall

32. The unit of energy produced by cellular processes, is stored as • CO2 • DNA • ATP • RNA

33. The unit of energy produced by cellular processes, is stored as • CO2 • DNA • ATP • RNA

34. A neutral atom of sulfur contains how many electrons ? • 34 • 6 • 16 • 32

35. A neutral atom of sulfur contains how many electrons ? • 34 • 6 • 16 • 32

36. This diagram allows us to conclude thatmonarchs and viceroys belong to the same . . . • genus • family • subfamily • species

37. This diagram allows us to conclude thatmonarchs and viceroys belong to the same . . . • genus • family • subfamily • species

38. Hydroelectric power is considered to be a “clean” energy source because . . . • it is available in most areas. • it increases the amount of power available. • it does not produce the pollutants that burning fossil fuels do. • it requires minimal investment in equipment

39. Hydroelectric power is considered to be a “clean” energy source because . . . • it is available in most areas. • it increases the amount of power available. • it does not produce the pollutants that burning fossil fuels do. • it requires minimal investment in equipment

40. What conclusion is best supported by this data ? • There is no risk of Down syndrome in children born to mothers under age 34 • The risk of Down syndrome increases dramatically in children born to mothers after age 34 • The risk of Down syndrome doubles in children born to mothers for each year over the age of 34 • There is no correlation between the number of Down syndrome births and age.

41. What conclusion is best supported by this data ? • There is no risk of Down syndrome in children born to mothers under age 34 • The risk of Down syndrome increases dramatically in children born to mothers after age 34 • The risk of Down syndrome doubles in children born to mothers for each year over the age of 34 • There is no correlation between the number of Down syndrome births and age.

42. Brain-A-Thon 2013 The End

43. warm moist air rising from a large body of water snowfall Back