WBSED - 8 - Science :: Physical Environment
Go To: WBSED-Science-Grade 8
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[Author - Anu Nived]
Objective: To learn about Force, Pressure, Light and Temperature and their characteristics
Subtopics to be covered:
- Force and Pressure
- Non contact forces
- Temperature
- Light
Learning Outcome:
- Students can identify types of Force, Pressure and their application
- They can recognize practical applicability of temperature and light
[Author - Kripa S]
http://www.wbsed.gov.in/wbsed/readwrite/etextbook/Paribesh%20O%20Bigyan%20Class%20VIII.pdf#page=11 (Bengali Medium)
[Author - Anu Nived]
http://www.aaronswansonpt.com/wp-content/uploads/2011/07/Pressure.png (force and pressure)
http://www.ekshiksha.org.in/images_force_pressure_VIII/figure_4.JPG (force and pressure)
http://www.ekshiksha.org.in/images_force_pressure_VIII/figure_5.JPG ( Contact force - muscular force)
http://idahoptv.org/sciencetrek/topics/gravity/images/tree_and_apple.png (non contact force - gravittaional force)
[Author - Kripa S]
1. https://www.youtube.com/watch?v=9GR9LvFi0eI&t=14s (pressure magic)
2. https://www.youtube.com/watch?v=feqM6aahfCY (rainbow)
3. Take three large mugs. Label them as A, B and C. Put cold water in mug A and hot water in mug B. Mix some cold and hot water in mug C. Now dip your left hand in mug A and the right hand in mug B. After keeping the hands in the two mugs for 2–3 minutes, put both the hands simultaneously in mug C. Do both the hands get the same feeling?
[Author - Poulami Ganguly]
ttps://drive.google.com/open?id=0BzNF2YyqQxJ-NjE3YWFWR1l6QlU
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