https://www.khanacademy.org/science/grade-4-science-pakistan-national-curriculum/xd6642c7f392cd435:plants-structure-and-function/xd6642c7f392cd435:seed-germination/v/requirements-for-seed-germination-introductory 2026-07-02T12:10:59.912898911Z Requirements for Seed Germination - Introductory Requirements for Seed Germination - Introductory Khan Academy Pakistan video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Requirements for Seed Germination - Introductory Requirements for Seed Germination - Introductory https://cdn.kastatic.org/ka-youtube-converted/ozJAY3AjYvA.mp4/ozJAY3AjYvA.mp4 129 Seed germination https://www.khanacademy.org/science/grade-4-science-pakistan-national-curriculum/xd6642c7f392cd435:plants-structure-and-function/xd6642c7f392cd435:seed-germination/e/how-seeds-germinate-requirements-for-growth 2026-07-06T04:40:49.22516192Z How Seeds Germinate: Requirements for Growth This exercise bridges visible macroscopic growth observations with experimental control principles. It addresses common misconceptions about why roots grow downward, what cotyledons become during sprouting, and how specific factors like air or warmth are isolated in a scientific experiment. Sumera Anjum exercise