Worksheet 2
2) The bag should be made of opaque materials like leather or canvas. It will prevent people from knowing what he is carrying.
3) It should be made of fabric which is translucent so that people cannot see through it clearly but some light can shine through.
4) It should be made of transparent materials like clear glass or plastics so that people can see the items on display clearly.
Worksheet 4
1) The shadow of the object will become bigger.
2) The shadow of the object will become smaller.
3) She can conclude that changes in the distance between the object and the light source will affect the size of the shadow.
(Teacher's remarks: When the distance between the object and the light source is changed, the distance between the object and the wall will also change. Hence, this will also affect the size of the shadow.)
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5 comments:
Why do you need to post up the teacher's remarks?
Sorry, did not put my name.
Ryan
Dear Ryan, the teacher's remark is more like an additional note for all of you to ponder or think about.
Do we need to copy it into the small paper?
Ryan.
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