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Plants and photosynthesis
What plants need, how water travels up a stem, why leaves are green, and the photosynthesis equation. Three ages, each with a text, an experiment, a game, a quiz, a printable worksheet and a teacher sheet.
Ages 6–7Plants: what do they need to grow?What plants need, what roots, stems and leaves do, and why plants grow towards the light. With a grow-a-seed experiment.Ages 10–11Photosynthesis: how a plant makes foodThe word equation for photosynthesis, how water travels from root to leaf, and stomata. With a coloured-water flower experiment.Ages 15–16Photosynthesis: the balanced equation and limiting factorsThe balanced equation, where the oxygen comes from, transport in xylem and phloem, and investigating the rate of photosynthesis with pondweed.