Q- 7 Do as directed.
1. List the changes in the body that take place at puberty.
2. Describe the construction of kaleidoscope.
Answers
Answer:
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Explanation:
Following changes take place in the body during puberty:
✔ ️Increase in Height.
✔ ️Change in Body Shape.
✔ ️Voice Change.
✔ ️Increased Activity of Sweat and Sebaceous Glands.
✔ ️Development of Sex Organs.
✔ ️Reaching Mental, Intellectual and Emotional Maturity.
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A kaleidoscope is composed of a hollow tube. Three mirrors are placed in the form of a triangular tube and their reflecting surfaces face each other. One end of the tube is covered with a transparent sheet and another end is covered with an opaque sheet. There is an eyehole in the opaque sheet. Bits of glass are filled inside the tube. When a kaleidoscope is turned, we get to see various patterns in it. These patterns are formed because of multiple reflections.