Grade 3 · Science · Challenge
Free Electricity, Magnetism, Light & Sound worksheet - version 8
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-1E1KOJQ-1U15
1.What happens to pitch as frequency rises?
2.Why are parallel circuit branches useful?
3.What does a switch control?
4.Why does sound travel faster in solids?
5.What can happen when light enters water?
6.Why does a shadow form?
7.What is the electromagnetic spectrum?
8.Why can you hear an echo?
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 8
- What happens to pitch as frequency rises?Pitch becomes higher
- Why are parallel circuit branches useful?Each branch can operate independently
- What does a switch control?Whether a circuit is open or closed
- Why does sound travel faster in solids?Close particles transfer vibrations quickly
- What can happen when light enters water?It refracts, or bends
- Why does a shadow form?An object blocks light
- What is the electromagnetic spectrum?The full range of electromagnetic waves
- Why can you hear an echo?Sound reflects from a surface
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.