Grade 3 · Science · Challenge
Free Electricity, Magnetism, Light & Sound worksheet - version 19
Grade 3 electricity, magnetism, light & sound practice with original questions, explanations, and difficulty-matched printable versions. This printable version includes 8 grade-appropriate questions and a separate answer sheet.
Electricity, Magnetism, Light & Sound
Grade 3 · Stretch challenge · 8 questions · Version PG-QS3HW8-1U15
1.What happens to pitch as frequency rises?
2.Why does sound travel faster in solids?
3.What can happen when light enters water?
4.Why are parallel circuit branches useful?
5.What affects electromagnet strength?
6.Why can you hear an echo?
7.What does a switch control?
8.Why does a shadow form?
Answers and teaching notes
Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.
Show answers for version 19
- What happens to pitch as frequency rises?Pitch becomes higher
- Why does sound travel faster in solids?Close particles transfer vibrations quickly
- What can happen when light enters water?It refracts, or bends
- Why are parallel circuit branches useful?Each branch can operate independently
- What affects electromagnet strength?Current, coil turns, and core material
- Why can you hear an echo?Sound reflects from a surface
- What does a switch control?Whether a circuit is open or closed
- Why does a shadow form?An object blocks light
Worked example
Use a model to track energy, forces, and waves through a system.
Common mistake
Assuming energy travels without a path or medium.
Helpful hint
Draw the source, path, interaction, and result.