Science: Forests
1. What are the advantages of managed/small scale wildfires in forests? Managed/planned animal hunting?
2. Where did drip irrigation originate? Why?
Science: Excretory system
Video: https://www.youtube.com/watch?v=SZ3BZBBC-Qc
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Science: Light
Light - Grade 7 - Youtube playlist for all these videos. Fire using convex lens . Reading glasses to ignite a fire. Spoon to light a fire. Myopia correction using concave lens. Hypermetropia correction using convex lens. concave/convex mirror online simulation Concave lens simulation . Convex lens simulation . Convex lens converges and concave lens diverges: https://www.youtube.com/shorts/FNqGJPVLkAk 1. Good demo of plane/convex/concave mirrors - https://www.youtube.com/watch?v=oDNqfxRYQY0 1a. Another one: https://www.youtube.com/shorts/lWGIMaMe1j4 2. Concave mirror demo using pendulum: https://www.youtube.com/watch?v=3e-LZPHBA2M 3. Concave mirror projecting a real image - https://youtu.be/fyYaDeTonVQ?si=sLBiCK5O9ib1x2Fq&t=117 4. Take a pencil close/away from spoon's inner surface and see when it becomes inverted/magnified? 5. Concave mirror for shaving: https://www.youtube.com/watch?v=m7z60fO3qV8 6. Concave mirror inside torch light: https://www....
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