Quick answer: You can teach children about natural gas in four short lessons: what it is (a fuel made mostly of methane), how it formed (from ancient plants and tiny sea creatures buried for millions of years), how it is found and brought up from underground, and how we use it (cooking, heating, electricity, fertiliser and plastics). Add one safety lesson: gas is given a smell on purpose so leaks can be noticed.
Parents, teachers and community leaders all have a part to play in helping children understand where energy comes from. If you want to teach your children the basics of natural gas and do not know where to start, use the four lessons below. Each one ends with a simple activity.
Learning about natural gas can be fun
Lesson 1: What is natural gas?
Start with something children already know. They may have wondered how the flame on a gas stove works, or seen cooking shows where some stoves have open flames and others have electric coils that glow red.
Explain that natural gas is a fuel that burns. According to the US Energy Information Administration (EIA):
- its largest part is methane;
- it also contains smaller amounts of other gases called natural gas liquids (such as ethane, propane and butane);
- it has some non-hydrocarbon gases such as carbon dioxide and water vapour.
An India-specific point worth teaching: the red cylinder in many Indian kitchens holds LPG (liquefied petroleum gas), which is mainly propane and butane. Homes connected to a city gas pipeline get piped natural gas (PNG), which is mostly methane. The same gas, compressed, runs CNG buses and autos.
Safety lesson: natural gas has no colour, smell or taste of its own. Gas companies add a harmless chemical called mercaptan that smells like rotten eggs, so people can notice a leak. Teach children that if they smell gas, they should tell an adult at once, not switch lights or appliances on or off, and leave the room.
Activity: with an adult in charge, look at a gas stove flame from a safe distance and talk about what the stove needs to make it: gas, air and a spark.
Lesson 2: How is natural gas formed?
Natural gas is a fossil fuel, like coal and oil. The EIA explains how it formed:
- Millions to hundreds of millions of years ago, the remains of plants and tiny sea creatures (such as diatoms) built up in thick layers.
- Over time, they were buried under sand, silt and rock.
- Heat and pressure deep underground slowly turned some of that material into natural gas and oil.
Today the gas is found in large cracks between rock layers and in the tiny pores (spaces) inside rocks such as shale and sandstone.
Activity: make a “sediment jar” by layering sand, soil and small leaves in a clear jar with water. Let it settle and talk about how layers pile up over time.
Lesson 3: How is natural gas found and brought to our homes?
Because the gas is invisible and buried deep underground, a lot of science goes into finding it:
- Exploring: geologists study rock formations that may hold gas. Seismic surveys send sound waves into the ground and measure how they bounce back, which tells scientists about the rock layers. If the results look promising, an exploratory (test) well is drilled.
- Drilling: if gas is found, production wells are drilled, on land or under the sea. Gas also comes from oil wells and coal beds.
- Releasing the gas: in tight rocks like shale, companies often use hydraulic fracturing (“fracking”), usually together with horizontal drilling. A fluid of water, sand and chemical additives is pumped down at high pressure to crack the rock so the gas can flow out. The name helps children remember it: “hydraulic” refers to liquid under pressure, and “fracturing” means breaking. Not every well uses fracking; gas in more porous rock can flow without it.
- Cleaning: the gas goes through gathering pipelines to a processing plant. There, oil, water, natural gas liquids and impurities such as sulphur, carbon dioxide and hydrogen sulphide are removed.
- Delivering: long-distance pipelines carry the cleaned gas to cities. Some gas is cooled to about minus 162°C (minus 260°F) until it becomes a liquid, called liquefied natural gas (LNG), which takes up about 600 times less space. LNG is shipped across the sea in specially insulated tankers.
Activity: draw the journey of gas from the rock to the kitchen stove as a comic strip.
Lesson 4: What are the parts of natural gas, and how do we use them?
The types of natural gas children hear about (methane, ethane, propane, butane and pentane) are more precisely different parts of the raw gas. They are separated at processing plants and used in different ways. The EIA lists these main uses:
| Gas | Main uses |
|---|---|
| Methane (natural gas) | Cooking, heating homes and water, generating electricity, CNG vehicles, and making fertiliser and chemicals |
| Ethane | Raw material for ethylene, which is used to make plastics, anti-freeze and detergents |
| Propane | Fuel for heating, cooking and drying; also used to make plastics |
| Butanes (normal butane and isobutane) | Blended into petrol, lighter fuel, plastics and synthetic rubber |
| Pentanes and heavier (“natural gasoline”) | Added to petrol, and used as solvents |
An earlier version of this lesson listed a few uses we could not confirm from official sources, such as “welding glass”, so they have been left out. The overall point stands: natural gas and its parts are among the most versatile energy sources we have.
Discussion for older children: burning natural gas releases carbon dioxide, a greenhouse gas, though less than burning coal or oil for the same energy. Methane that leaks without burning is itself a strong greenhouse gas. Talk about why saving energy at home helps, and about cleaner sources such as solar and wind.
Activity: walk around the house and list everything that uses gas or electricity. Then talk about where that electricity might come from.
Tips for teaching energy to children
- Keep each lesson short and hands-on. One idea and one activity is enough for younger children.
- Use everyday objects: the stove, the geyser, a CNG auto, a plastic bottle.
- Repeat the safety lesson often; it is the one children need most.
- For a day out, a science centre can bring these ideas to life. See our guide to Science City Kolkata. Teachers can find more classroom ideas in our list of technology tools for science classrooms.
Frequently asked questions
What is natural gas made of?
Mostly methane, with smaller amounts of other hydrocarbon gases (ethane, propane, butane) and non-hydrocarbon gases such as carbon dioxide.
Why does cooking gas smell if natural gas has no smell?
A harmless chemical called mercaptan is added so that leaks can be smelled. It is added to LPG for the same reason.
Is LPG the same as natural gas?
No. LPG is mainly propane and butane, stored as a liquid in cylinders. Piped natural gas (PNG) and CNG are mainly methane.
Is natural gas renewable?
No. Natural gas took millions of years to form, so it is a fossil fuel that cannot be replaced on a human timescale.
The science in these lessons was checked in October 2026 against the US Energy Information Administration’s “Natural gas explained”, “Hydrocarbon gas liquids” and Energy Kids pages and the US Environmental Protection Agency’s description of hydraulic fracturing.
