Heat and Temperature
A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint Science in preparation for GCSE and IGCSE Science.
Temperature vs Heat
Internal energy is the total amount of kinetic energy and potential energy.
Temperature is proportional to the average kinetic energy of a molecular’s translation motion. It is measured in °C, °F or K.
Heat is the energy transfer that occurs when two substances are in thermal contact and have differing temperatures. It is measured in Joules (J).
Measuring Temperature
When the degree of hotness - or temperature - of something goes up, its molecules go faster and it expands. This expansion can therefore be used to measure temperature itself. A device which does this is called a “hotness-meter” or thermometer. On the Celsius scale thermometer, the level to which mercury contracts at the freezing point of water is labelled 0 °C, and the level to which mercury expands at the boiling point of water is labelled 100 °C.
Fool Your Senses
Relative temperature felt by your hands
Check out our most popular games!
Fraction Concoction Game:
Master fractions in the lab: mix, add, and subtract beakers to create the perfect concoction!
Fact Family Game:
Complete fact families and master the link between addition & subtraction and multiplication & division.
Number Bond Garden:
Clear the board by matching number pairs that sum to ten in this garden-themed mental math puzzle.
Online Addition Subtraction Game:
Practice your addition and subtraction skills to help the penguin find its mummy.
We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.