NA
Amit Rastogi Envioronmental Studies Solutions for Exercise - NA
Simple step-by-step solutions to NA questions of Light, Sound and Force from Thinktrail Curiosity Chronicles- A coursebook for Science Grade 3. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from NA with Hints & Solutions
Your sister sitting in a dark corner of the room and doing her homework. How will you explain to her that she has to sit in a bright part of the room when she reads or writes?
Ankita likes to play with flashlight and candles. Why should she not do that?
Think: What will happen if the flashlight stops working? Is it safe to play with candles?
What are some sources of light?
Make the room dark. Find out which of the following things can give light. Is any of them brighter than the Sun?
| book | flashlight | candle | metal |
| plate | tube light | mirror | spectacles |
A shadow is formed on the same side as the source of light.
Look at the picture shown below. Few children are playing games that involve movement. Choose the name of the children who are applying force.
How are energy and work related?
The students of class IV were very excited. They had moved into a brand-new classroom. The walls were clean and the floor was smooth and glossy. During break time, students started running around the class. Reva asked her friend, Dia, not to run as the floor was slippery. But Dia ran, slipped, fell, and hurt her foot.
Why do think Dia slipped?
