Science Terminology for 11-13 Yr Olds --- (Jon Witts)

Note: You may download the entries for this glossary here. If you wish to use this in your own Moodle course, first make a blank glossary and then follow the instructions for importing glossary entries here.

This contains 12 individual glossaries based on the units from UK Year 8 Key Stage 3 Science.[11-13 Yr Olds] 

They are:


  • Food and Digestion Glossary
  • Respiration Glossary
  • Microbes and Disease Glossary
  • Ecological Relationships Glossary
  • Atoms and Elements Glossary
  • Compounds and Mixtures Glossary
  • Rocks and Weathering Glossary
  • The Rock Cycle Glossary
  • Heating and Cooling Glossary
  • Magnets and Electromagnets Glossary
  • Light Glossary
  • Sound and Hearing Glossary 
Browse the glossary using this index

Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL

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when living cells or blood take in food or oxygen


light energy hits a surface and is converted into heat energy


what happens when digested food particles pass from the digestive system into the bloodstream.


to build up


the process of building up or gathering together


has a pH less than 7, for example stomach acid.


changes to organisms which allow them to survive or to do their job

Aerobic respiration

glucose from food reacts with oxygen to produce energy


has a pH greater than 7.


air sacs in the lungs where gaseous exchange happens


determines how loud or soft a sound is

amylase enzyme

enzyme responsible for the breakdown of starch.

Anaerobic respiration

chemical reactions that release energy without oxygen

Angle of incidence

angle between the normal and an incident ray

Angle of reflection

angle between the normal and a reflected ray

Angle of refraction

angle between the normal and a refracted ray


chemicals produced by certain white blood cells, help to destroy microbes


the end point of the digestive system.

Apparent depth

distance an object appears to be below the surface of a transparent material (due to refraction)


blood vessels that carry blood away from the heart


the smallest bit of something


force pulling towards something

Auditory nerve

nerve that carries electrical signals from the ear to the brain so we can hear

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