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Preparing interactive calculation engine
Preparing interactive calculation engine
Perform mock lab tests, balance reactions, record observations, download worksheets, and check model answers aligned with national science syllabus targets.
To study the relationship between the distance traveled and time taken by a ball rolling down an inclined plane, and to verify the equations of motion.
To determine the concentration of a sodium hydroxide (NaOH) solution by titrating it against a standard solution of hydrochloric acid (HCl) using phenolphthalein indicator.
To prepare a temporary stained mount of onion peel, and to study plant cell structures under a compound microscope.
To study the dependence of potential difference (V) across a resistor on the current (I) passing through it, and to determine its resistance.
To demonstrate the chemical decomposition of water into hydrogen and oxygen gases using an electric current, and to verify their volume ratios.
To find the time period of a simple pendulum for different lengths and hence calculate the acceleration due to gravity (g).
To verify Archimedes' principle by showing that the buoyant force on an object equals the weight of fluid displaced.
To trace the path of a ray of light through a rectangular glass slab and verify that the incident and emergent rays are parallel, and to measure the lateral displacement.
To visualize and plot the magnetic field lines around a bar magnet using a compass needle.
To determine the focal length of a concave mirror and study image formation at various object distances.
To use a ticker timer tape to plot a velocity-time graph and determine acceleration of a moving object.
To separate and identify the different colored pigments present in a black ink sample using paper chromatography.
To prepare a sample of soap by heating a fat (coconut oil) with sodium hydroxide solution (saponification reaction), and to test its cleansing action.
To investigate the conditions — water and oxygen — required for rusting of iron.
To determine the relative reactivity of metals (copper, zinc, iron) and arrange them in an activity series based on displacement reactions.
To classify common household substances as acids, bases, or salts using universal indicator and litmus paper.
To prepare CO₂ gas in the laboratory using marble chips and dilute HCl, and to test its properties.
To test a leaf for the presence of starch as evidence of photosynthesis, and to show that light is necessary for photosynthesis.
To demonstrate osmosis by observing changes in mass and length of potato strips placed in solutions of different concentrations.
To measure how light intensity affects the rate of photosynthesis by counting oxygen bubbles produced by pondweed (Elodea) at different distances from a light source.
To demonstrate the mechanism of inhalation and exhalation using a bell jar model with balloons representing the lungs and diaphragm.
To investigate how temperature affects the activity of salivary amylase enzyme by monitoring the breakdown of starch.
To use a potometer to measure how environmental factors (wind, humidity, temperature) affect transpiration rate in a leafy shoot.