Page 37 - Science and Technology Std 3

FOR ONLINE USE ONLY
DO NOT DUPLICATE

Exercise 2

FOR ONLINE USE ONLY
1. Match the words in group A and B to make the correct

meanings.

Example. Fire - G

Group A Group B

(i) Reflection A. The natural source of light and heat
energy

(ii) Sun B. Light rays turned back after striking
a shining surface

(iii) Drum, C. The dark surface at the back of an
bell and object which does not allow light to
trumpet pass through

(iv) Heat D. Vibration of things
travels in

(v) Shadow E. Sources of sound energy

(vi) Fire F. The solid, liquid and gas states

G. Produces light and heat

Answer the following questions.

2. Light energy travels in a ________.

3. Mention objects that allow light to pass through them.

4. Explain the importance of heat energy at home.

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PROPERTY OF UNITED REPUBLIC OF TANZANIA GOVERNMENT
Ministry of Education, Science and Technology
Science and Technology 3.indd 30 03/08/2019 11:02