C1 The particulate nature of matter: key vocabulary
Twelve key words for IGCSE Co-ordinated Sciences topic C1 (the particulate nature of matter), with the Vietnamese meaning, how to say each word, a picture and an example. Ends with a test section, and a typing trainer on the site that also practises twelve general science words.
Practice
- C1 The particulate nature of matter: vocabulary trainer – Practise 24 words by typing them: the 12 words of the unit and 12 general science words (state, define, deduce). Questions give a definition, a sound or an example sentence; words you miss come back, words you know come back later.
Transcript
Welcome. Here are twelve key words for topic C one, the particulate nature of matter. Listen to each word. Read the Vietnamese meaning. Then look at the picture.
Particle. Particle. A particle is a very small piece of matter, such as an atom or a molecule. Here is an example. All matter is made of tiny particles.
Solid. Solid. A solid keeps its own shape and its own volume. Here is an example. Ice is water as a solid.
Liquid. Liquid. A liquid flows and takes the shape of its container, but its volume stays the same. Here is an example. Water is a liquid at room temperature.
Gas. Gas. A gas has no fixed shape or volume. It spreads out to fill its container. Here is an example. Steam is water as a gas.
Melting. Melting. Melting is the change of state from solid to liquid. Here is an example. Melting happens when a solid is heated to its melting point.
Freezing. Freezing. Freezing is the change of state from liquid to solid. Here is an example. Freezing turns liquid water into ice.
Boiling. Boiling. Boiling is the change from liquid to gas all through the liquid, at the boiling point. Here is an example. Boiling happens at 100 degrees Celsius for pure water.
Evaporation. Evaporation. Evaporation is the change from liquid to gas at the surface of the liquid, below the boiling point. Here is an example. Evaporation dries wet clothes on a washing line.
Condensation. Condensation. Condensation is the change of state from gas to liquid. Here is an example. Condensation makes drops of water on a cold window.
Sublimation. Sublimation. Sublimation is the change from solid straight to gas, without becoming a liquid. Here is an example. Sublimation turns dry ice, solid carbon dioxide, straight into gas.
Diffusion. Diffusion. Diffusion is the net movement of particles from a region of higher concentration to a region of lower concentration. Here is an example. Diffusion spreads the smell of perfume across a room.
Concentration. Concentration. Concentration is how many particles there are in a certain volume. Here is an example. The concentration of the dye is highest near the crystal.
Now, test yourself. I will show you a picture and the Vietnamese meaning. Say the English word out loud. Then listen, to check.
particle.
solid.
liquid.
gas.
melting.
freezing.
boiling.
evaporation.
condensation.
sublimation.
diffusion.
concentration.
Twelve words. Particle. Solid. Liquid. Gas. Melting. Freezing. Boiling. Evaporation. Condensation. Sublimation. Diffusion. And concentration. Watch this video again until you know all of them.
state.
define.
deduce.
determine.
measure.
substance.
property.
volume.
mass.
temperature.
pressure.
energy.
More in this series
3:15States of matter
The particle model of solids, liquids and gases, why gases can be compressed, the six changes of state, and why the temperature stays flat on a heating curve while a substance melts or boils. With Vietnamese subtitles. A “Check yourself” section with typed questions is below the video on the site.
2:36Diffusion
What diffusion is, why particles spread from high to low concentration, how temperature and particle mass change the speed, the ammonia and hydrogen chloride tube, and Brownian motion. With Vietnamese subtitles. A “Check yourself” section with typed questions is below the video on the site.
5:36C1 quiz: particulate matter
Ten think-time questions on solids, liquids and gases, the changes of state, the heating curve, diffusion and particle mass.