Day, night and seasons

9.During winter, how do day length and night length compare?

10.Why do the Sun and stars appear to move slowly across the sky?

11.What is the primary reason Earth orbits the Sun?

12.Which of the following best explains why the northern hemisphere experiences summer when tilted towards the Sun?

13.A student in London measures the length of daylight each day for a year. Which graph best shows how the length of daylight changes over the year? (Assume London is in the northern hemisphere.)

14.The Earth's axis is tilted at 23.5° from the vertical. If the tilt were increased to 45°, what would be the most likely effect on seasons in the northern hemisphere?

15.A city on the equator experiences 12 hours of daylight every day. Which statement explains why?

16.The table shows the number of daylight hours on the first day of each season in a northern hemisphere city. Which row is correct?

17.The Earth's orbit around the Sun is not a perfect circle but an ellipse. At which point in its orbit would the Earth be moving fastest?

18.A student investigates how the angle of sunlight affects temperature. They shine a torch at a surface from directly overhead (90°) and then at a shallow angle (30°). Which result would they observe?

19.Which statement best explains why it is colder at the poles than at the equator?

20.A scientist observes that a particular star rises 4 minutes earlier each night. What causes this?

21.The diagram shows the Earth at four positions in its orbit around the Sun. The northern hemisphere is tilted towards the Sun at position X. Which position corresponds to the summer solstice in the northern hemisphere?

22.A student in Australia (southern hemisphere) observes that the Sun is highest in the sky in December. Which statement explains this?

23.How many degrees does the Earth rotate in one hour?

24.The diagram shows the Earth with its axis tilted. Which labelled location on Earth would experience 24 hours of daylight on the summer solstice in the northern hemisphere?

25.A student uses a lamp to represent the Sun and a globe on a stand to represent Earth. The student rotates the globe while keeping the lamp fixed. Which observation best demonstrates why day and night occur?

26.A student sets up a model to show how the tilt of Earth's axis causes seasons. They place a globe with a tilted axis at four positions around a lamp. At position P, the northern hemisphere is tilted toward the lamp. Which statement about position P is correct?

27.Which statement about a hemisphere is correct?

28.A student measures the angle of sunlight at noon in London on two different days. On day A, the Sun is higher in the sky than on day B. Which conclusion is most likely?

29.A student investigates how the angle of sunlight affects temperature using a torch and a surface. They shine the torch at 90° (directly overhead) and then at 30° from horizontal. Which result is expected?

30.A student uses a model Earth and a lamp to demonstrate why the southern hemisphere experiences winter when the northern hemisphere experiences summer. Which step is essential in the demonstration?

31.How long does it take the Earth to complete one full spin on its axis?

32.A student observes that the Sun rises in the east and sets in the west. Which statement explains this observation?

33.A student builds a model to show the cause of seasons. They place a lamp at the center and a globe with a tilted axis at four positions around it. Which factor is most important for the model to correctly show seasons?

34.What is the name of the imaginary line that divides the Earth into northern and southern hemispheres?

35.Which graph best shows how the number of daylight hours changes over a year in a city in the northern hemisphere?

36.A student wants to measure how the angle of sunlight affects the area covered by a beam of light. They shine a torch at a screen from directly overhead and then at 45°. Which measurement should they take?

37.How long does it take for the Earth to complete one full spin on its axis?

38.The Earth's axis is tilted at 23.5° from vertical. If the tilt were increased to 45°, what would be the most likely effect on seasons in the northern hemisphere?

39.A student uses a lamp to represent the Sun and a globe on a stand to represent Earth. The student rotates the globe while keeping the lamp fixed. Which observation best demonstrates the cause of day and night?

40.A student sets up a model to show how the tilt of Earth's axis causes seasons. They place a globe with a tilted axis at four positions around a lamp. At position X, the northern hemisphere is tilted away from the lamp. What season does the northern hemisphere experience in this position?

41.How many hours does it take for the Earth to complete one rotation on its axis?

42.What is the name of the imaginary line that divides the Earth into the northern and southern hemispheres?

43.The Earth's axis is tilted at 23.5° from vertical.

44.Day and night are caused by the Earth orbiting the Sun.

45.Match each hemisphere condition with the season it experiences.

46.Arrange the following events in the correct order for a person in the northern hemisphere experiencing a full day: (a) Sun at highest point, (b) sunrise, (c) sunset, (d) midnight.

47.Which of the following are true about the Earth's axis and its effect on seasons? (Select all that apply)

48.The Earth takes 365 days to complete one orbit around the Sun.

49.A student in London (51°N) notices that on a certain day the Sun rises at 7:00 am and sets at 4:30 pm. What is the approximate length of daylight on that day?

50.The Earth's axis is tilted at 23.5° from the vertical.

51.Complete the sentence using the correct word.

52.State the direction in which the Sun appears to rise on Earth.

53.How many degrees does the Earth rotate in one hour? (Hint: 360° in 24 hours)

54.The Earth rotates 360° in 24 hours. How many degrees does it rotate in 1 hour?

55.Explain why the northern hemisphere experiences winter when it is tilted away from the Sun.

56.Explain why the northern hemisphere experiences summer when it is tilted towards the Sun.

57.How many degrees does the Earth rotate in one hour? (Hint: 360° in 24 hours)

58.The Earth rotates 360° in 24 hours. How many degrees does it rotate in 1 hour?