Acids, Alkalis, Acid Rain
A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint Science in preparation for GCSE and IGCSE Science.
Acids and Alkalis (Bases)
The following table shows the colour change of the pH indicator for different types of substances.
Acids and Alkalis
- Describe the uses of acids and alkalis
- Explain the difference between acids and alkalis
- Describe the process of neutralization
Acid rain
Learn the basics about Acid Rain. What causes acid rain?
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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