1. Derek’s One Science File Third Grade 2008-2009

2. + 1.5 volts Battery - Electrical circuit

5. How do we get energy? Most energy comes from the sun. First the sun goes to a leaf. Then animals or we eat the plant. If the animal eats it we eat the animal. light Yumm! Beef and milk

6. Physical change

7. Liquid Gas +Heat Solid

9. Periodic table of elements

10. Gravity Helium lift

11. Gravity Weight lower

12. This is a triple beam balance.

13. This is how you use it. All you do is place an item on the balance. We are weighing this metal basket.

14. First you move the weights on the balance until the bar gets matched up with the line. Then add what the three weights circle and that’s how much the item weighs!

15. This is a graduated cylinder

16. Graduated cylinders mature amounts of water.

17. The three states of mater

18. Record grooves

19. C.D grooves

21. Helium We use helium to blow up balloons. The only thing that is lighter than helium is hydrogen, but that burns. hydrogen helium

22. This is why we don’t use hydrogen. helium

23. Compass rose

24. Water has something called surface tension. It is like a skin of water. Surface tension fools gravity and has dense things float.

25. This paper clip floats because of surface tension.

26. Argentine ant

27. Botany is the study of plants.

28. Distictis

31. Cotyledon

32. Embryo

34. Waves Waves carry energy like if you drop something in to water it creates waves

35. The ancient Greek thought these were the 4 elements… Fire Earth Air Water

36. Derek’s Plants

37. Mule Fat

38. Mule Fat Baccharis Salicifolia White Flower Pink Flower

39. Miner’s Lettuce

40. Miner’s Lettuce Claytonia Perfoliata White Flower

41. Western Cottonwood

42. Western Cottonwood Populus Deltoides Red Brown Flower Green Flower

43. Black Sage

44. Black Sage Salvia Mellifera Lavender Flower Pale Rose Flower

45. White Sage

46. White Sage Salvia Apiana White with Lavender Flower

47. Mohave Yucca

48. Mohave Yucca Yucca Schidigera Purple White Flower

49. San Diego Sunflower Hulsea Californica

50. California Sunflower helianthus annuus

51. Barrel Cactus Ferocactus

52. Morning-Glory pyrus malus

53. Deer Weed urtica dioica L.

54. Wild-Cucumber Echinocystis lobata

55. Coast live oak Quercus agrifolia Nee var

56. Nuttall’s Scrub Oak, Dodder, Monkey flower Lupinus sp.

57. Mercury

61. Saturn

65. Venus

68. Halloween 2008 Friday

70. After on Monday

72. When there’s no moon

74. When there’s a moon

76. The main moon phases

77. New moonWaxing crescentFirst quarterWaxing gibbous Full moon Waning gibbous Waning crescentLast quarter

78. E Dawn S W Dusk Noon The suns path

79. East West Summer time

80. EastWest Winter time

81. The winter sky

82. The Night Sky

83. 12 inch Meade telescope

84. The Sky one night

85. The Orion Nebula

86. This is Kepler the rocket launching

87. This is Johannes Kepler.

88. The Big Dipper

89. Polaris is the north star and it's connected to the little dipper.

90. Tues. Mar. 31 for 3 minutes 7:46 pm N to ENE

91. Life in southern California

92. Mastodon

93. Tree Sloth

94. Rhea

95. Ornithopoda

96. Ground Sloth

97. Saber-tooth Cat