Grade 3 · Science · Challenge
Free Matter & Energy worksheet - version 11
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-ERVK7R-PTDS
1.Explain “solution” in your own words.
2.Explain “thermal equilibrium” in your own words.
3.Explain “specific heat” in your own words.
4.Explain “chemical reaction” in your own words.
5.Explain “mixture” in your own words.
6.Explain “conservation of energy” in your own words.
7.Explain “electromagnetic radiation” in your own words.
8.Explain “density” 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 11
- Explain “solution” in your own words.a uniform mixture in which one substance dissolves in another
- Explain “thermal equilibrium” in your own words.a state in which objects have the same temperature
- Explain “specific heat” in your own words.energy needed to change a material's temperature
- Explain “chemical reaction” in your own words.a process that forms new substances
- Explain “mixture” in your own words.two or more substances physically combined
- Explain “conservation of energy” in your own words.energy changes form but is not created or destroyed
- Explain “electromagnetic radiation” in your own words.energy carried by electric and magnetic waves
- Explain “density” in your own words.mass per unit volume
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.