powered by v43.aiLearn anatomy like an artist
English
Step 3 · Choose a topic · Class 9

Chemistry

Explore matter, atoms, reactions and the periodic table.

0 XP0 mastered
Your suggested learning path

0 of 7 topics mastered

Explore → practise → quiz → revise. Earlier topics are recommended preparation; every topic stays open.

Start here: Investigate a charged beam →
  1. Investigate a charged beamUp next
  2. Design a particle filterExplore
  3. Atomic structureExplore
  4. Mass and molesExplore
  5. DilutionExplore
  6. Boyle’s lawExplore
  7. Periodic tableExplore
7 of 7 topics
01Atomic evidence

Investigate a charged beam

NCERT chapter connection

Compare an electron beam with a positive-ion beam between oppositely charged plates. Switch the upper plate’s polarity and observe the deflection. This is a qualitative charge–force model inspired by discharge-tube experiments, not a reconstruction or a calibrated trajectory.

Interactive explainer 3-round quiz
02Separating mixtures

Design a particle filter

NCERT chapter connection

Choose an ideal pore opening and suspended particle size. Particles smaller than the opening pass through; larger ones are retained. Actual filters have varied pores. Ordinary filtration does not remove dissolved salt from water.

Interactive explainer 3-round quiz
03Atoms

Atomic structure

NCERT chapter connection

Choose an element and change its neutron count to explore isotopes. This simplified shell diagram shows neutral atoms of the first ten elements. Electrons are shown schematically, not on physical orbits.

Interactive explainer 3-round quiz
04Amount of substance

Mass and moles

Suggested-level exploration

The mole connects a sample’s mass with its molar mass. Change the mass and select a molar mass to find the amount of substance.

Interactive explainer 3-round quiz
05Solutions

Dilution

Suggested-level exploration

Add solvent to a fixed amount of dissolved solute. Choose the initial concentration for an initial volume of 100 mL; explore the final concentration after dilution.

Interactive explainer 3-round quiz
06Gases

Boyle’s law

Suggested-level exploration

For a fixed amount of ideal gas at constant temperature, pressure and volume are inversely related. Start with a volume of 1 L at the selected reference pressure.

Interactive explainer 3-round quiz
07Shared reference

Periodic table

Shared reference

Select elements, compare groups and periods, then test your understanding in the element quest.

Interactive explainer 3-round quiz