Space · Ages 7+ · 15 min · Kholo Plus
Rocket
Ride ISRO’s LVM3 from countdown all the way to space.
What is inside
- Solid boosters (S200). Two huge tubes packed with solid fuel that give the big push off the ground.
- Liquid core stage (L110). The middle stage with two Vikas engines, burning liquid fuel pumped from big tanks.
- Cryogenic stage (C25). The top stage burns super-cold liquid hydrogen and oxygen — the most efficient fuel mix.
- Brain & navigation. Computers and motion sensors that steer the rocket and decide when each stage separates.
- Fairing & spacecraft. A pointed nose cone that protects the spacecraft, then opens once the rocket leaves the air.
Stories in this thing
- How does a rocket fly?. Push gas down, go up!
- Launch to space. From countdown to a spacecraft on its way
- Why rockets have stages. Throw away what you don’t need
- Solid boosters. A star-shaped fire inside a tube
- Liquid engines & steering. Pumps, fire and swivelling nozzles
- The super-cold stage. Liquid hydrogen at −253 °C
School topics it covers
- Forces
- Newton’s laws
How children use it
Pull it apart with one slider, tap any part to hear what it does, follow a short story read aloud, then answer a few questions. Every thing comes with experiments to try at home and study notes linked to the NCERT chapter it supports.
More things to open
- Solar system — Why it is night, why summer is hot, and how Chandrayaan reached the Moon.
- Satellite — Why it never falls down, and how TV comes from space.
- Family car — Follow one drop of petrol from the tank all the way to the wheels.
- Aeroplane — How 70 tonnes of metal takes off, cruises and lands.
- Cruise ship — Why steel floats — and the secret crew corridor inside.
- Electricity — From the power station to your switch — and what happens when you flick it.