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
Learn the basics about Acid Rain. What causes acid rain?
Try the free Mathway calculator and
problem solver below to practice various math topics. Try the given examples, or type in your own
problem and check your answer with the step-by-step explanations.
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