Grade 3 · Science · Challenge
Free Matter & Energy worksheet - version 15
Grade 3 matter & energy practice with original, difficulty-matched questions. This printable version includes 8 grade-appropriate questions and a separate answer sheet.
Matter & Energy
Grade 3 · Stretch challenge · 8 questions · Version PG-DNX5FV-PTDS
1.Explain “electromagnetic radiation” in your own words.
2.Explain “endothermic process” in your own words.
3.Explain “exothermic process” in your own words.
4.Explain “specific heat” in your own words.
5.Explain “mixture” in your own words.
6.Explain “thermal equilibrium” in your own words.
7.Explain “density” in your own words.
8.Explain “chemical reaction” in your own words.
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 15
- Explain “electromagnetic radiation” in your own words.energy carried by electric and magnetic waves
- Explain “endothermic process” in your own words.a process that absorbs energy from its surroundings
- Explain “exothermic process” in your own words.a process that releases energy to its surroundings
- Explain “specific heat” in your own words.energy needed to change a material's temperature
- Explain “mixture” in your own words.two or more substances physically combined
- Explain “thermal equilibrium” in your own words.a state in which objects have the same temperature
- Explain “density” in your own words.mass per unit volume
- Explain “chemical reaction” in your own words.a process that forms new substances
Worked example
Track matter and energy before and after a change.
Common mistake
Assuming matter disappears when it changes form.
Helpful hint
Identify the system and follow what enters, leaves, or transforms.