Materials and Solutions — Flashcards
ICSE · Class 4 · Science
30 flashcards for Materials and Solutions (ICSE Class 4 Science) to test yourself on key terms and facts. Sample: "What is a soluble substance?"
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What is a soluble substance?
Answer
A soluble substance is one that dissolves in a liquid. For example, sugar dissolves in water, so it is soluble in water.
What is an insoluble substance?
Answer
An insoluble substance is one that does not dissolve in a liquid. For example, sand does not dissolve in water, so it is insoluble in water.
What is a solute?
Answer
A solute is the substance that dissolves in a liquid to form a solution. For example, in sugar water, sugar is the solute.
What is a solvent?
Answer
A solvent is the liquid in which a solute dissolves. For example, in sugar water, water is the solvent.
What is a solution?
Answer
A solution is a mixture formed when a solute dissolves in a solvent. For example, salt water is a solution of salt (solute) in water (solvent).
Why is water called a universal solvent?
Answer
Water is called a universal solvent because it can dissolve many substances like salt, sugar, and juice. This helps in many daily activities and in nature.
Give two examples of substances that are soluble in water.
Answer
Sugar and salt are both soluble in water. They disappear when stirred in water and form a solution.
Give two examples of substances that are insoluble in water.
Answer
Sand and oil are insoluble in water. They do not dissolve and can be seen separately in water.
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