Basics of Chemistry Worksheet-3

Basics of Chemistry Worksheet-3


  1. A table that groups and displays elements in a systematic manner is called __________.

(a) book of elements                    (b) catalog

(c) periodic table                           (d) element table


  1. Which of the following is the smallest part of an element?

(a) Molecule     (b) Atom            (c) Metal           (d) Compound


  1. _______ is the physical change where surface molecules of liquid escape into the air.

(a) Evaporation                             (b) Boiling

(c) Foaming                                    (d) Condensation


  1. Which of the following action is must in a chemical change?

(a) Atoms moving together        (b) Molecules gaining more energy

(c) Atoms linking together         (d) Matter is changing its shape


  1. Which of the following is an acid?

(a) Lemon Juice                            (b) Milk

(c) Water                                         (d) Nitrogen


  1. Which of the following is a base?

(a) Orange Juice                           (b) Water

(c) Baking soda                              (d) Glass


  1. How many poles are there in a magnet?

(a) One                                            

(b) Two (North and South)       

(c) Four (North, South, East and West)

(d) Three (N, S and P)


  1. When two types of substances react and produce a new substance that has different molecular structure, it is called ________.

(a) Biological reaction                 (b) Transformation

(c) Mixology                                   (d) Chemical reaction


  1. Which of the following material can you use to insulate your home?

(a) Foam insulator                        (b) Copper sheet

(c) Aluminum foil                         (d) Any heat conductive material


  1. Moon has one sixth of the earth gravitational force. How much a person, whose weight is 60 Kg on earth, will weigh on the moon?

(a) 360 Kg         (b) 60 Kg           (c) 10 Kg           (d) 30 Kg


Answer Key:

(1)–(c); (2)–(b); (3)–(c); (4)–(a); (5)–(a); (6)–(c); (7)–(b); (8)–(d); (9)–(a); (10)–(c)