NCERT Science • Getting to Know Plants
🌱 Label the Parts of a Plant
Drag or tap each plant organ label from the bank and place it into its matching target slot on the diagram.
Score: 0 / 6
Drag or tap a plant part label:
🌸 Flower (Reproductive Organ)
🍃 Leaf (Photosynthesis)
🍅 Fruit (Seed Bearer)
🎋 Stem (Support & Transport)
🥕 Primary (Tap) Root
🌾 Secondary (Lateral) Roots
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💡 Important NCERT Science Concepts:
- Shoot System: The aerial part of the plant growing above ground; includes the stem, branches, leaves, flowers, and fruits.
- Root System: The underground anchoring structure; consists of a thick main central root (Tap Root) and smaller branching offshoots (Lateral Roots) lined with root hairs that absorb water and mineral nutrients from soil.
- Leaves (Food Factory): Carry out photosynthesis in the presence of sunlight and chlorophyll; perform gas exchange and cooling via microscopic pores called stomata (transpiration).
- Stem: Bears leaves and buds at points called nodes; houses internal vascular pipelines (xylem and phloem) conducting water up from roots and food down from leaves.
- Flowers & Fruits: The flower is the primary reproductive organ which develops into fruit containing seeds for seed dispersal.
NCERT Science • Reproduction in Plants
🌺 Label the Parts of a Flower (L.S.)
Drag or tap each flower organ label and place it into its matching target slot on the longitudinal section diagram.
Score: 0 / 6
Drag or tap a floral part label:
🌸 Petal (Corolla)
🍃 Sepal (Calyx)
🟡 Anther (Pollen Bearer)
📏 Filament (Stamen Stalk)
✨ Stigma & Style
🥚 Ovary with Ovules
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💡 Key NCERT Floral Anatomy Takeaways:
- Stamen (Male Organ / Androecium): Consists of a slender stalk (Filament) and a bilobed terminal head (Anther) containing pollen grains.
- Carpel / Pistil (Female Organ / Gynoecium): Centrally positioned; has a sticky top (Stigma) to receive pollen, an elongated neck (Style), and a swollen basal Ovary housing female gametes (Ovules).
- Petals (Corolla): Brightly colored, scented leaves that protect internal reproductive organs and attract pollinators like bees and butterflies.
- Sepals (Calyx): Outermost green whorl protecting the flower in its bud stage.
- Post-Fertilization Fate: Following pollination and fertilization, the ovary develops into the fruit, and the ovules become the seeds.
Quiz on Pendulum
NCERT Physics • Motion and Time
⏱️ Label the Simple Pendulum & Oscillation
Drag or tap each label from the bank and place it into its matching target slot on the pendulum diagram.
Score: 0 / 6
Drag or tap a part or motion term:
🧱 Rigid Support (Fixed Clamp)
📏 Effective Length (L)
⚪ Metallic Bob (Mass m)
⚖️ Mean Position (O)
↔️ Extreme Position (A / B)
📐 Amplitude (Max Displacement)
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💡 Important NCERT Physics Concepts & Formulas:
- Periodic / Oscillatory Motion: The to-and-fro motion of the simple pendulum about its central Mean Position ( ) is periodic.
- One Complete Oscillation: The motion of the bob from (or from and back to ).
- Time Period ( ): The time taken by the bob to complete one full oscillation. Given by: T = 2π √(L / g)
- Key Takeaway: The time period depends only on the effective length ( ) and acceleration due to gravity ( ); it is independent of the mass of the bob and the amplitude.
its very helpful 😊