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Interactive quizzes & worksheets on miscellaneous and mix review test for grade-3 olympiad science students.
Pattern of questions : Multiple Choice Questions


  1. Gas is burned in a car engine. It is when a chemical energy changes into energy.

(A) mechanical energy                (B) heat energy

(C) electrical energy


  1. Coal, wood and oil are used to heat homes. This is when chemical energy changes to energy.

(A) sound energy                          (B) heat energy

(C) light energy


  1. Energy of moving objects such as parts of machines like a car. It is called________ energy.

(A) mechanical energy                (B) electrical energy

(C) chemical energy


Answer Keys

(13)–A; (14)–B; (15)–A