Science
Energy
Conceptual
10–11 yrs
More batteries, brighter bulb
电池越多，灯泡越亮
Description
Associate the brightness of a lamp or volume of a buzzer with the number and voltage of cells used in a series circuit
Mastery Evidence
- Describe the pattern: more cells (or higher voltage) = brighter bulb / louder buzzer
- Explain that more cells provide more energy to the circuit
- Predict the effect of changing the number of cells on a component's behaviour
Assessment Prompt
Can your child explain why adding a second battery makes the bulb brighter, and predict what happens with three batteries?
