A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint Science in preparation for GCSE and IGCSE Science.
Changes to the States of Matter
Melting and Evaporating - showing particles and illustrate by experiments
Sublimation of Carbon Dioxide
Sublimation of dry ice
Changes to the States of Matter
Melting and Evaporating - showing particles and illustrate by experiments
Sublimation of dry ice
Try out our new and fun Fraction Concoction Game.
Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.
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