This is an engaging and enjoyable memory game on shadows and lunar and solar eclipses for middle school. Pupils work in teams of three or four. Each team lays out their 42 cards face down in a square and take it in turn to turn over two cards. If the cards are a question and its correct answer, the pupil keeps the pair. If they are not a match they are turned face down and the next pupil gets a turn. This process continues until all cards are matched and the winner is the pupil with the most pairs.
If a team member thinks that the selectors pair is not a correct match, they can challenge.
Pupils are encouraged to check their books for the correct answer but the teacher also has a quick-check answer sheet. If the challenge is correct, the challenger keeps the pair.
Included in this Pack.
- 42 question and answer cards
- Teacher’s answer sheet.
- Instruction sheet
Preparation
- Use double-sided printing to copy 1 set per group of 4 pupils.
- Sheets could be laminated to enable year-on-year use.
- Cut sheets into cards.
Prior Knowledge Required
- The shadow of a point source only has an umbra, but the shadow of a large point source has an umbra and a penumbra.
- If the light source moves closer to the object, the shadow gets bigger.
- If the object moves closer to the screen, the shadow gets smaller.
- A lunar eclipse happens when the Earth stops all, or some, of the Sun’s light from reaching the Moon.
- The Moon orbits the Earth once every 29.5 days.
- When the entire moon passes through the Earths penumbra it appears slightly darker (penumbral eclipse).
- If only part of the moon passes through the Earth’s umbra it is a partial eclipse.
- A solar eclipse happens when the Moon stops all, or some, of the Sun’s light from reaching the Earth
- A person on Earth, standing in the Moon’s umbra will see a total solar eclipse.
- A person on Earth, standing in the Moon’s penumbra will see a partial solar eclipse.
- When the Moon is at its furthest point from Earth, it no longer covers the whole surface of the Sun, and an annular eclipse is seen from the umbra.
- The Moon’s orbit is angled relative to the Earth, so the Sun, Earth and Moon are not often in the alignment needed for a lunar Eclipse to occur.
- When the entire moon passes through the Earths umbra it appears red due to refracted red light (total or umbral eclipse).
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