Basics of Chemistry-Worksheet-5

Basics of Chemistry Worksheet-5

1. What is true about the elements?

A. It has only one kind of matter.      

B. It has more than one kind of matter.

C. It has only two kinds of matter.

D. None of the above.

2. How can you change the form of a matter?

A. By keeping it on the floor      

B. By throwing it

C. By shining a beam of light on it

D. By heating or cooling it

3. Find out the correct statement from the following.

A. Heating and cooling bring changes in matters

B. Physical change is always a permanent change

C. Gases cannot be dissolved in liquid

D. All liquids get mixed with each other.

4. Suman tries to push in the plunger as shown in the figure, but finds that she cannot do so. What is the reason?

A. Water cannot be compressed

B. Water has no definite shape

C. Water has no definite volume

D. Water occupies space.

5. The object in the given figure is made of a combination of ____ and ____.

A. Plastic, wood                             B. Wood, metal

C. Metal, plastic                            D. Glass, metal.

6. Four objects are placed into a measuring cylinder one at a time and the water level is as shown in the figure below.

The object with the largest volume is ____

A. a                    B. b                     C. c            D. d                     E. e

7. What happens to the sugar when it is dissolved in water?

A. Its molecules become a new type of molecules.

B. Its molecules remain as sugar molecules.

C. A chemical reaction forms a new substance.

D. A physical reaction forms a new substance.

8. Which of the following will have most mass?

A. A lunch box                              B. A school bus

C. A table                                      D. A big book

Answer Keys:

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