Today's Devotional

Tender Hearts
How can we avoid being spiritually stubborn and unresponsive to God?

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Class7_Science_Acids, Bases and Salts_Indicators

Many substances that you encounter in your daily life have different properties. One major
difference between substances is whether they are acidic or basic. There are special substances
that are used to test whether something is acidic or basic. These substances are called
indicators.

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