Biology
Life, one cell at a time.
NCERT Biology chapter by chapter: take a 3D cell apart, run the activities as virtual labs, and revise with cards that remember what you know.
Class 9
All Class 9 chaptersNCERT Exploration, Grade 9
Start with these
- Powers of tenZoom from your height to an atom
- Virtual microscopeActivity 2.1: measure an onion cell
- Potato osmosis labActivity 2.2: watch the water move
- Three cells side by sideActivity 2.4: fill Table 2.1
- 3D cell explorerTake a plant or animal cell apart
- Find the stageActivity 2.5: an onion root tip slide
- MitosisChromosomes copied and shared
- Cell theory timelineFrom cork in 1665 to synthetic DNA
- Cell to organismClimb the ladder for a plant and an animal
- Where a plant growsApical, lateral and intercalary zones
- Onion root labActivity 3.1: cut the tips, watch the graph
- Sunflower stem sectionTap to identify every tissue
- Xylem and phloemWater up, food out of the leaves
- Three kinds of muscleOnly one obeys you
- Fire a neuronDendrite to axon to muscle
- A working armTwo muscles, one elbow, pulling in turn
- Joint labBall and socket, hinge, pivot and fixed, in 3D
- Group them four waysActivity 12.1: drag and sort
- Five kingdom keyActivity 12.3: place any organism
- Animal kingdom keyNotochord to vertebrates
- Taxonomy pyramidZoom from kingdom to species
- Asexual galleryBudding, spores, splitting and plantlets, animated
- Bread mould time-lapseActivity 11.3: day by day, then the microscope
- The bead gameActivity 11.4: make gametes, count the mixes
- Take a flower apartActivity 11.5: peel it whorl by whorl
- The pea bagging testActivity 11.6: predict, then unwrap
- Pollen tubeFrom stigma to egg cell, step by step
- Butterfly life cycleEgg, larva, pupa, adult
- Menstrual cycle dialA typical 28-day cycle, day by day