Basics of Chemistry-Worksheet-7

Basics of Chemistry Worksheet-7

1. Which of the following element is a solid at room temperature?

A. Hydrogen     B. Oxygen                   C. Nitrogen       D. Gold

2. Select the correct definition of Gas.

A. Its particles are very far apart and arranged in a tight pattern.

B. Its particles are very far apart and not arranged in a pattern.

C. Its particles are close and not arranged in a pattern.

D. Its particles are very close and arranged in a pattern.

3. Which property is true for a solid?

A. It takes the shape of its container

B. It flows downward but not upward

C. It has a definite shape

D. It has no definite volume.

4. The smell of a perfume spreads quickly from one corner of the room to the other because ____.

A. Gases have a fixed shape

B. Gases have a fixed volume

C. Gases flow easily

D. Molecules are tightly packed.

5. The given figure shows a milk bottle for a baby.

Which of the following materials should it be made of?

A. Plastic           B. Metal             C. Glass              D. Wood.

6. Which of the following change describe a chemical change?

A. A change in the temperature of metals.

B. A change in the volume of liquids.

C. A change that does not result in the production of a new substance.

D. A change that results in the production of a new substance.

7. Cooking is a form of ______ change.

A. chemical                                    B. physical                 

C. chemical and physical             D. none of the above

8. Which of the following is the unit to measure volume?

A. Meter             B. Litre               C. Gram             D. Kilogram

Answer Keys:

(1)–(d); (2)–(b); (3)–(c); (4)–(c); (5)–(a); (6)–(d); (7)–(a); (8)–(b)