Year 5 and 6 Homework – Week 2 Term 2
Spelling
WALT – Learn words from the essential lists and the inquiry unit.
Write an interesting paragraph using all 10 words only once. Underline the spelling words.
Reading
You must read for at least 15 minutes each night.
Draw your table up and record your reading.
Write a small reflection of your reading this week. What did you enjoy? Predict what you think is going to happen.
Maths
Play Mystery Dice:
Take 3 dice and roll them behind a piece of paper. Add the total of the 3 dice tell your partner the total. Take one of the dice away and reveal the others to your partner. Your partner must guess what number the dice was that was taken away.
Play some maths games on from your class blog – use the links to find them.
Record what games you played.
Inquiry
Our inquiry unit this term is based on ‘solar energy’, which is a form of renewable energy. There are also other forms of renewable energy.
Check the newspaper and the internet to see if you can find any articles on renewable energy.
Paste the article into your homework book and write a summary of what the article is about. There may be some valuable information that you can learn!
News in Rap 2013
11 years ago
Umbra
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Umbra, penumbra and antumbra.
Example of umbra, penumbra and antumbra outside astronomy.For other uses of the word "umbra", see Umbra (disambiguation).
For other uses of the word "penumbra", see Penumbra (disambiguation).
The umbra, penumbra and antumbra are the names given to three distinct parts of a shadow, created by any light source. For a point source only the umbra is cast.
These names are usually used when referring to the shadows cast by celestial bodies.
Contents [hide]
1 Umbra
2 Penumbra
3 Antumbra
4 References
[edit] Umbra
The umbra (Latin for "shadow") is the darkest part of the shadow. From within the umbra, the light source is completely occluded. In astronomy, an observer in the umbra is said to be in the shadows experiencing total eclipse. As it says here the umbra is a complete or perfect shadow of an opaque body, where the direct light from source of illumination is completely cut off
[edit] Penumbra
The penumbra (from the Latin paenes "almost, nearly" and umbra "shadow") is the region in which only a portion of the light source is obscured by the occluding body. An observer in the penumbra experiences a partial eclipse.
An alternative definition is that the penumbra is the region where some or all of the light source is obscured (i.e., the umbra is a subset of the penumbra). For example, NASA's Navigation and Ancillary Information Facility defines that a body in the umbra is also in the penumbra.[1]
[edit] Antumbra
The antumbra is the region from which the occluding body appears entirely contained within the disc of the light source. If an observer in the antumbra moves closer to the light source, the apparent size of the occulting body increases until it causes a full umbra. An observer in this region experiences an annular eclipse.
the artical i sent was from me mr d.it was about some things that will be useful for writing about shadows
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