--- title: Electricity dangers: sockets, water, chargers and batteries — a lesson of Mova's school · trees and pragmatics description: «Electricity dangers: sockets, water, chargers and batteries», a lesson of the technology course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: The battery in a torch is gentle: you can hold it all day. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Technology](https://md.mova.elamur.ai/free/en/corpora/school/technology/) / Electricity dangers: sockets, water, c… # Electricity dangers: sockets, water, chargers and batteries Lesson 16 of the technology course of Mova's primary school: 19 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/technology/16-electricity-dangers/). - [0](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/0/) — The battery in a torch is gentle: you can hold it all day. - [1](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/1/) — The electricity in the wall socket is about a hundred and fifty times stronger and can stop a heart. - [2](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/2/) — Our bodies are mostly salty water, and salty water lets electricity flow through it, so electricity can pass through a person on its way to the ground. - [3](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/3/) — Electricity also makes heat: wires that carry too much, chargers buried in a duvet, or a damaged battery can all get hot enough to start a fire. - [4](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/4/) — Picture a bedroom at night: a phone charging under the pillow, a heater on a stack of adaptors, fairy lights left on. - [5](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/5/) — Each one is a small, quiet danger you can learn to spot. - [6](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/6/) — The rules are all «never» and «tell an adult»: never anything in a socket, never water near plugged-in things, never touch a fallen wire, and tell a grown-up about anything broken, hot or swollen. - [7](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/7/) — Mains electricity in UK and European homes is around 230 volts (volts measure how hard electricity pushes), enough to stop a heart, while a torch battery is only one and a half volts. - [8](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/8/) — Never put fingers, keys, pencils or anything else into a socket, and tell an adult if a socket is broken or scorched. - [9](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/9/) — Water, especially with salt or soap in it, lets electricity pass through it and through you, which is why UK bathrooms usually have no ordinary sockets, only shaver sockets. - [12](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/12/) — The plastic covering on a cable keeps the live wires from touching you or each other, so frayed cables and broken plugs are not used, and cables are not run under rugs. - [13](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/13/) — Chargers and batteries get warm; under a pillow or duvet the heat cannot escape, so phones are charged on a hard surface with a proper charger; cheap fake chargers may skip safety parts, get very hot and start fires. - [14](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/14/) — Lithium batteries in phones, tablets and e-scooters hold a lot of energy; if one swells, gets hot or smells, tell an adult, and never pierce or crush it. - [15](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/15/) — A swallowed button cell battery can burn a child's throat within hours, even if it seems flat, so a child who may have swallowed one goes to hospital at once. - [16](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/16/) — Power lines carry very high voltage, and electricity can jump to a kite string, especially a wet one, so kites and drones are flown in open spaces far from power lines. - [17](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/17/) — Birds can sit on a power line because they touch only one wire and not the ground. - [18](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/18/) — Never climb a pylon or into an electricity substation, even for a ball, and never touch a fallen wire; the power company gets things out safely. - [19](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/19/) — Substations carry a yellow warning triangle with a lightning bolt. - [20](https://md.mova.elamur.ai/free/en/corpora/school/technology/16-electricity-dangers/20/) — Christmas and fairy lights are checked for damage, switched off at night, and indoor lights are never used outdoors. - ← previous: [Kitchen and garden dangers](https://md.mova.elamur.ai/free/en/corpora/school/technology/15-kitchen-and-garden-dangers/) - next →: [Inside a car: engine, gears and the dashboard](https://md.mova.elamur.ai/free/en/corpora/school/technology/17-inside-a-car/) - ↑ back to [Technology](https://md.mova.elamur.ai/free/en/corpora/school/technology/)