Wednesday, March 30, 2011

Year 5 - Dimmer or brighter

Diagram 1 below shows two types of circuits, P and Q, with the same types of bulbs and battery.
Diagram 2

(a) State the aim of the investigation.

_______________________________________________________________

(b) identify the circuit P and Q

P : _______________________________

Q : _______________________________

(c) In this investigation, state the following variable:

i. What is changed : _________________________________________________

ii. What is measured : ________________________________________________

iii. Kept the same : ___________________________________________________

(d) Predict an observation if the bulb X in circuit P is removed.

_______________________________________________________________

(e) Predict an observation if the bulb Y in circuit Q is removed.

_______________________________________________________________

(f) State the relationship between the arrangment of the bulbs and the brightness of the bulbs.

_______________________________________________________________

_______________________________________________________________

(g) What can you conclude?

_______________________________________________________________

_______________________________________________________________

Food Presevervation

Advantages and disadvantages of food preservations