2. It’s summer. You wake up and bright sunlight
streams in your window. It makes you squint.
As the sun rises in the sky, the day gets
warmer and warmer. Yes! It’s a beautiful
summer day!

3. It’s summer. You wake up and bright sunlight
streams in your window. It makes you squint.
As the sun rises in the sky, the day gets
warmer and warmer. Yes! It’s a beautiful
summer day!
HOW DOES SUNLIGHT AFFECT AIR
TEMPERATURE?

5. CHANGES IN AIR TEMPERATURE

6. CHANGES IN AIR TEMPERATURE
 What is the warmest part of the
day?
a. Morning
b. Afternoon
c. Evening

7. CHANGES IN AIR TEMPERATURE
 What is the warmest part of the
day?
a. Morning
b. Afternoon
c. Evening

8. CHANGES IN AIR TEMPERATURE
 What is the warmest part of the
day?
a. Morning
b. Afternoon
c. Evening

9. CHANGES IN AIR TEMPERATURE
 What is the warmest part of the
day?
a. Morning
b. Afternoon
c. Evening

11. WHY AFTERNOON?

12. WHY AFTERNOON?

13. WHY AFTERNOON?
 The temperature of the air has to do with how
much sunlight (light energy from the sun)
reaches the earth.

14. WHY AFTERNOON?
 The temperature of the air has to do with how
much sunlight (light energy from the sun)
reaches the earth.
 Sunlight passes through air…but does NOT
heat it!

16. Light energy from the sun hits
liquids and solids on the surface of
the earth.

17. Light energy from the sun hits
liquids and solids on the surface of
the earth.

19. When liquids and solids get warm, they
warm the air above them.

20. When liquids and solids get warm, they
warm the air above them.

22. Earth’s surface does NOT heat
evenly.

23. Earth’s surface does NOT heat
evenly.
Why? Well, check it out…

24. Earth’s surface does NOT heat
evenly.
Why? Well, check it out…

26. WHICH SEASON HAS LONGER DAYS?
SUMMER OR WINTER

27.  The number of hours of daylight also affects air
temperature.
WHICH SEASON HAS LONGER DAYS?
SUMMER OR WINTER

28.  The number of hours of daylight also affects air
temperature.
WHICH SEASON HAS LONGER DAYS?
SUMMER OR WINTER

29.  The number of hours of daylight also affects air
temperature.
 More Daylight = More Warmth
WHICH SEASON HAS LONGER DAYS?
SUMMER OR WINTER

30.  The number of hours of daylight also affects air
temperature.
 More Daylight = More Warmth
WHICH SEASON HAS LONGER DAYS?
SUMMER OR WINTER

31.  The number of hours of daylight also affects air
temperature.
 More Daylight = More Warmth
WHICH SEASON HAS LONGER DAYS?
SUMMER OR WINTER

33. DIFFERENT SURFACES

34. DIFFERENT SURFACES
Imagine:

35. DIFFERENT SURFACES
Imagine:
It’s one of those really hot days. You decide to
go swimming. In your bare feet, you walk across
the pavement toward the lake. YIKES! The
pavement is hot! You run to the beach. Yow!
The sand is almost as hot! Quickly, you head for
some grass. Ahh, that’s better! The grass is
much cooler than the sand or the pavement.

36. DIFFERENT SURFACES
Imagine:
It’s one of those really hot days. You decide to
go swimming. In your bare feet, you walk across
the pavement toward the lake. YIKES! The
pavement is hot! You run to the beach. Yow!
The sand is almost as hot! Quickly, you head for
some grass. Ahh, that’s better! The grass is
much cooler than the sand or the pavement.

38. WHY WAS THE GRASS COOLER?

39. WHY WAS THE GRASS COOLER?
 Different surfaces absorb different amounts of
light energy.
 What does that mean?
 Some surfaces get hot faster than others.

40. WHY WAS THE GRASS COOLER?
 Different surfaces absorb different amounts of
light energy.
 What does that mean?
 Some surfaces get hot faster than others.
Fast Absorbers Slow Absorbers
Blacktop Grass
Cement water
buildings

41. LET’S GO BACK TO THE BEACH…

42. LET’S GO BACK TO THE BEACH…

43. LET’S GO BACK TO THE BEACH…
The ocean
heats up
more slowly.

44. LET’S GO BACK TO THE BEACH…
The ocean
heats up
more slowly. The air above
the ocean will
stay cooler
than the air
above the
land.

45. LET’S GO BACK TO THE BEACH…
The land further
The ocean away from the
heats up ocean heats up
more slowly. The air above more quickly.
the ocean will
stay cooler
than the air
above the
land.

46. LET’S GO BACK TO THE BEACH…
The land further
The ocean away from the
heats up ocean heats up
The air above
more slowly. The air above more quickly.
the land away
the ocean will from the ocean
stay cooler stays warmer.
than the air
above the
land.

48. MEASURING AIR TEMPERATURE

49. MEASURING AIR TEMPERATURE

50. MEASURING AIR TEMPERATURE
 Thermometer

51. MEASURING AIR TEMPERATURE
 Thermometer
 When the air around the liquid gets warmer, the
liquid gets warmer.

52. MEASURING AIR TEMPERATURE
 Thermometer
 When the air around the liquid gets warmer, the
liquid gets warmer.
 When the liquid gets warmer, it spreads out
and moves up the thermometer.

53. MEASURING AIR TEMPERATURE
 Thermometer
 When the air around the liquid gets warmer, the
liquid gets warmer.
 When the liquid gets warmer, it spreads out
and moves up the thermometer.
 When it cools, the opposite happens.

55. °C AND °F

56. °C AND °F
 C = Celsius (a metric scale for measuring
temperature)

57. °C AND °F
 C = Celsius (a metric scale for measuring
temperature)
 F = Fahrenheit (a customary scale for
measuring temperature)

58. °C AND °F
 C = Celsius (a metric scale for measuring
temperature)
 F = Fahrenheit (a customary scale for
measuring temperature)

59. °C AND °F
 C = Celsius (a metric scale for measuring
temperature)
 F = Fahrenheit (a customary scale for
measuring temperature)
 Higher Number = Warmer temperature

60. °C AND °F
 C = Celsius (a metric scale for measuring
temperature)
 F = Fahrenheit (a customary scale for
measuring temperature)
 Higher Number = Warmer temperature
 Lower Number = Cooler temperature

62. LET’S REVIEW

63. LET’S REVIEW
 Why are air temperature usually higher in the
late afternoon than in the morning?
 The direct rays of the sun hit the surface of the
earth near noon, but it takes time for the surface of
the earth to heat the air. Therefore, air
temperatures are often higher in the late afternoon
than in the morning.

65.  Why is the air above the warm surfaces warmer
than the air above cooler surfaces?
 Warmer surfaces heat the air above them more than
cooler surfaces do.

67.  What causes the liquid in a thermometer to rise
in he tube?
 When warm air around the thermometer heats the
liquid, it expands and moves up the tube.

69. RANGE, MEDIAN, AND MODE

70. RANGE, MEDIAN, AND MODE
 What is the range, median, and mode of this data:

71. RANGE, MEDIAN, AND MODE
 What is the range, median, and mode of this data:

72. RANGE, MEDIAN, AND MODE
 What is the range, median, and mode of this data:
90, 80, 76, 66, 98, 85, 76

73. RANGE, MEDIAN, AND MODE
 What is the range, median, and mode of this data:
90, 80, 76, 66, 98, 85, 76
Range = 32
Median = 80
Mode = 76