Virtual science labs

The board practical as in the handbook: load a spiral spring, read the pointer, time 20 oscillations and find its force constant and its mass from your graphs.

The board practical as in the handbook: put two resistances in series and in parallel in the gap of a metre bridge, tap the jockey to find the null point, and verify the laws of combination.

The board practical as in the handbook: weigh 3.92 g of ferrous ammonium sulphate, make 100 mL of 0.1 M standard solution, titrate it against KMnO₄ to a faint pink end point and calculate the molarity.

The board practical as in the handbook: precipitate ferric hydroxide with KOH, filter and wash it, dissolve it in warm oxalic acid and potassium oxalate, filter, concentrate on a sand bath, cool, and collect the green crystals of the complex.

The board practical as in the handbook: shake benzaldehyde, acetone and spirit with 10% NaOH in a corked flask, releasing the pressure, cool in ice, filter the yellow solid and recrystallise it from hot rectified spirit on a water bath.

The board practical as on the handbook’s form: preliminary and dry tests with the charcoal cavity and the flame, the original solution, group zero, detection of two groups, their analysis and confirmatory tests, to find the two basic radicals of a third mixture, one of them in group zero.

Tilt the road and compare what banking and friction each contribute, with the safe range of speeds shown live.

Pull two masses inward on a spinning platform and watch it speed up while its angular momentum stays the same.

Raise a heavy load with a small push, then follow the pressure from a brake pedal to all four wheels.

Build a four-seat, high-wing light aeroplane in a 3D hangar from 40 named parts: the fuselage on its jig, the landing gear and tail, the cabin, the wings on the overhead crane with their struts, flaps and ailerons, the engine, cowling and propeller, then the wheels and lights, and the first engine run.

Build a six-axis industrial robot in a 3D robot cell from 27 named parts: the riser anchored to the floor, the base, turret and axis 1 reducer and motor, the shoulder drive and the lower arm on the overhead crane with its spring balancer, the elbow, upper arm, forearm and wrist with their servo motors, the harness, valves and gripper, then the controller, cables, teach pendant and safety scanner, and its first run: it checks every axis and picks and places a part.

Install an 8-person traction lift in its shaft in 3D from 51 named parts: the guide rails stood up on the hoist, the buffers, the car frame built in the pit and the counterweight at the top landing, the deflector, bedplate and gearless machine at the head of the shaft, the governor and controller, the car, doors and landing doors, then the ropes, and the lift commissioned and run to every floor.

Build a 1.6-litre four-cylinder petrol engine up from its block in a 3D engine shop from 32 named parts: the block on the engine stand, the crankshaft and ladder frame, the pistons, rods and caps, the oil pump and sump, the head gasket and head, twin camshafts and timing chain, covers, pulleys, alternator and belt, manifolds, fuel rail, coils, flywheel and starter, then crank it and watch it run.

Build a geostationary communications satellite in a 3D cleanroom from 23 named parts: the launch adapter and central cylinder on the integration stand, the propellant tanks, reaction wheels, batteries and avionics, the radiator panels with their amplifiers, the walls, earth deck, feeds and sensors, the reflectors and folded solar arrays, then the deployment test.