A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint Science in preparation for GCSE and IGCSE Science.
What is Sound?
How is sound created and how can we hear it?
Sound Waves: High Pitch and Low Pitch
How to use a guitar, xylophone, bottle of water and rulers to show how the pitch of sound changes?
What is Sound?
How is sound created and how can we hear it?
How to use a guitar, xylophone, bottle of water and rulers to show how the pitch of sound changes?
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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