Year 2 Ch 5: Light & Dark, Day and Night (pt. 2)

​What we have learnt:

• ​Light and darkness

• ​Light sources

• ​The uses of light

• ​Shadows and changes in shadow.

​What we are going to learn:

• ​Relate the formation of shadow to day and night

• ​Exploring how the Sun appears to move during the day and how it changes the shadow

• ​Understand the movement of Earth

• ​The Sun is the light source in our ecosystem

• ​The Earth revolves around the Sun.

• ​The Earth spins on its axis.

• ​The Earth spins causes the Sun to appear moving during the Day.

• ​It makes the Sun rises in the east and sets in the west.

• Although Japan is called the land of the rising sun, the Sun first rises in New Zealand.

• ​Remember:

  • ​The shadows always appear in the opposite side of the object from the light source

• ​Therefore, in the morning, as the Sun rises in the East, the shadow is on the west of the object.

• At noon , the Sun is on top of the object, so the shadow falls under it.

• ​The shadow is the shortest at noon.

• The shadow will appear on the east of the object after noon as the Sun is now on the west side.

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• The shadow is the longest early in the morning and late in the afternoon / evening.

• ​It is dark at night as light is blocked by the other part of the Earth so we stay in the darkness to rest before starting another day.