--- title: Heat and temperature: how things warm and cool — a lesson of Mova's school · trees and pragmatics description: «Heat and temperature: how things warm and cool», a lesson of the world course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: Temperature tells us how hot or cold something is; we measure it with a thermometer in degrees Celsius (°C). --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/) [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/) / [World](https://md.mova.elamur.ai/free/en/corpora/school/world/) / Heat and temperature: how things warm… # Heat and temperature: how things warm and cool Lesson 82 of the world course of Mova's primary school: 24 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/world/82-heat-and-temperature/). - [0](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/0/) — Temperature tells us how hot or cold something is; we measure it with a thermometer in degrees Celsius (°C). - [1](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/1/) — Heat is energy that moves from a hotter thing to a colder thing, never the other way by itself. - [2](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/2/) — Heat keeps flowing until both things reach the same temperature. - [3](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/3/) — A cup of hot cocoa cools down to room temperature, and an ice cube from the freezer warms up and melts, because the room gives it heat. - [4](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/4/) — Heat travels in three ways. - [5](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/5/) — Conduction passes heat through touching materials, like a pan handle getting hot. - [6](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/6/) — Convection carries heat with moving air or water: warm air rises and cool air sinks. - [7](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/7/) — Radiation carries heat across empty space, as the Sun warms the Earth. - [8](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/8/) — Most things grow a little bigger when heated and shrink when cooled. - [9](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/9/) — The liquid in a thermometer expands and climbs up the thin tube as it gets warmer, and bridges have small gaps so they can grow on hot days. - [10](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/10/) — Cold is not a thing that flows. - [11](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/11/) — When metal feels cold, it is because the metal carries heat away from your hand quickly; a wooden bench at the same temperature feels less cold because wood carries heat away slowly. - [12](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/12/) — Temperature is a measure of how hot or cold something is. - [13](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/13/) — Heat always flows by itself from a hotter object to a colder one. - [14](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/14/) — Heat stops flowing when two things reach the same temperature. - [15](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/15/) — Conduction is heat passing through a material or between things that touch. - [17](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/17/) — Radiation carries heat through empty space, which is how sunlight warms the Earth. - [18](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/18/) — Most materials expand when they are heated and contract when they are cooled; metal expands more than glass. - [19](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/19/) — A liquid thermometer works because the liquid inside expands as it warms. - [20](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/20/) — Metal feels colder than wood at the same temperature because it conducts heat away from your skin faster. - [22](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/22/) — Wool, feathers and blankets trap still air, so they slow the loss of heat; they make no heat of their own. - [23](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/23/) — Dark, dull surfaces absorb heat radiation better than white, shiny ones. - [24](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/24/) — A full bath of warm water holds more heat than a small cup of boiling water. - [25](https://md.mova.elamur.ai/free/en/corpora/school/world/82-heat-and-temperature/25/) — Normal human body temperature is about 37 °C. - ← previous: [Magnets](https://md.mova.elamur.ai/free/en/corpora/school/world/81-magnets/) - next →: [Floating and sinking: the push of water](https://md.mova.elamur.ai/free/en/corpora/school/world/83-floating-and-sinking/) - ↑ back to [World](https://md.mova.elamur.ai/free/en/corpora/school/world/)