You're viewing free preview questions — 4 questions previewing here — subscribe to unlock 70 more, plus the Full Question Bank, Mock Papers & Worksheets.Upgrade
Phases of the Moon and Eclipses — Free MYP3 Sciences Practice Questions
1QuestionLunar Phases and Their CycleConcept Practice
2 marks~3 minCriterion A
The diagram below shows the Moon during its first quarter phase. An arrow points to the boundary between the illuminated and dark portions of the Moon's surface.
a
Identify the feature indicated by the arrow. [1]
b
Explain why the Moon is described as waxing at this phase. [1]
Solutions
2QuestionLunar Phases and Their CycleAssessment Practice
2 marks~3 minCriterion D
Sea turtle hatchlings use the reflection of moonlight on the ocean surface to navigate toward the sea after hatching.
Describe one real-world effect that a full moon has on sea turtle hatchlings. [2]
Describe one real-world effect that a full moon has on sea turtle hatchlings. [2]
Solutions
3QuestionViewing Moon Phases from EarthAssessment Practice
8 marks~12 minCriterion C
The diagram below shows four positions of the Moon in its orbit around Earth. Sunlight travels from right to left. A 90° grid is centred on Earth.
Position 1: Moon between Earth and Sun.
Position 2: Moon at 90° from the Sun–Earth line.
Position 3: Moon directly opposite the Sun.
Position 4: Moon at 270° from the Sun–Earth line.
Position 1: Moon between Earth and Sun.
Position 2: Moon at 90° from the Sun–Earth line.
Position 3: Moon directly opposite the Sun.
Position 4: Moon at 270° from the Sun–Earth line.
a
Identify which position (1, 2, 3, or 4) could produce a total lunar eclipse. [1]
b
Explain why the Moon must be at that position for a total lunar eclipse to occur. In your answer, use the terms umbra and alignment. [3]
c
The diagram shows that lunar eclipses do not occur every month, even though the Moon reaches position 3 every orbit. Analyse two reasons why a total lunar eclipse is rare. [4]
Solutions
4QuestionLunar Phases and Their CycleAssessment Practice
3 marks~5 minCriterion B
The table below shows moonrise times for seven consecutive days during a waxing gibbous phase.
| Day | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
| Moonrise time (PM) | 6:15 | 7:05 | 7:55 | 8:45 | 9:35 | 10:25 | 11:15 |
a
Identify the pattern in the daily change in moonrise time. Support your answer with at least two calculations from the data. [1]
b
Calculate the predicted moonrise time for Day 10. Show all working. [2]
Solutions
That's every free question here — 4 of 74.
+70 more questions, plus Mock Papers & Worksheets, are waiting in Premium.