Question

Date
Class & Section
Subject: Science Topic: Light and Shadows
01
1. Write an activity with the aim to study the change in size of shadow of
an object, when light falls from:
i. Light source to the right side of the object at an angle
ii. light source is just above the object just like the sun at noon
iii. light source is to the left side of the object at an angle.
This is similar to the positions of sun during:
sunrise
ii. noon
iii. and sunset
B. Result-clue(How does the shadow vary in each case on the basis of
size and shape)
The activity to be written in SCIENCE ACTIVITY notebook.
Keep in mind the step to write:
LHS
RHS
im
Photos or picture clicked
Material Required
Observations
Procedure Method
Conclusion Result
Observations
Conclusion/Result

Answer 1

Answer:

Find the value of :

i) 4x - 5y when x=2, y=3

ii) 3a+4b when a = - 3 , b= - 6

iii) a+ b- 5c when a= - 4 , b=5, c= 2

iv) x² + 6x -7 when x=1

Answer 2

Answer:left

Explanation: