A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint Science in preparation for GCSE and IGCSE Science.
States of Matter - solids, liquids and gases
Learn the basics about the three well-known States of Matter - solids, liquids and gases. What is a state of matter? and what are properties of solids, liquids and gases?
The particle theory is used to explain the properties of solids, liquids and gases. The strength of bonds between particles is different in all three states.
What is Brownian motion?
Effects of gas particles on smoke particles.
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