SSC Worksheet for chapter-3 Understanding Matter class 9

Worksheet For class 9

Fill in the Blanks

1. Metalloids show ___________ characteristics between metals & non metals.
2. The constituent unit of a compound is a___________.
3. Mixture of salt and sugar is an example of ___________mixture, however their solution in water is an example of __________mixture.
4. When two or more elements are fused together, without any chemical bonding, it is known as ___________.
5. Stainless steel is an alloy of ________, ___________, __________ and
6. Air is a __________.
7. A mixture of sugar and water can be separated by _________.
8. Cow milk is a ____ solution.
9. Tyndale effect is observed is __________.
10. Duralumin is an alley of _________.
11. What are different types of matter based on their composition?
12. Differentiate compound from a mixture?
13. What is a suspension?
14. Explain what do you understand by colloid?
15. What are various methods of separation of components of a mixture ?

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Solutions

1. Interradiate
2. Molecule
3. Hytrogenous, Homogeneous
4. An alloy
5. Iron, Carbon, Chromium & nickel
6. Mixture
7. Distillations
8. Colloidal
9. Colloid
10. Aluminum
11. Elements, components & mixtures.
12. Compound: A substances made up of more than one element in a fixed proportion acid it can be further subdivided only by chemical means.
13. A suspension is a heterogeneous mixture in which the solute particles do not dissolve but remain suspended in it. These particles are visible by naked eye.
14. Colloid is heterogeneous mixture where size of the particles is less than the size of particles is a suspended in it.
15. Hand picking, winning, filtration, distillation, fractional distillation.