Grade 1 · Science · Challenge
Free Matter & Energy worksheet - version 15
Grade 1 matter & energy practice with original, difficulty-matched questions. This printable version includes 8 grade-appropriate questions and a separate answer sheet.
Matter & Energy
Grade 1 · Stretch challenge · 8 questions · Version PG-U28XI9-ARBN
1.Explain “density” in your own words.
2.Explain “conductor” in your own words.
3.Explain “insulator” in your own words.
4.Explain “condensation” in your own words.
5.Explain “solution” in your own words.
6.Explain “evaporation” in your own words.
7.Explain “chemical reaction” in your own words.
8.Explain “thermal equilibrium” 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 “density” in your own words.mass per unit volume
- Explain “conductor” in your own words.a material that transfers heat or electricity easily
- Explain “insulator” in your own words.a material that slows heat or electric transfer
- Explain “condensation” in your own words.change from gas to liquid
- Explain “solution” in your own words.a uniform mixture in which one substance dissolves in another
- Explain “evaporation” in your own words.change from liquid to gas at a surface
- Explain “chemical reaction” in your own words.a process that forms new substances
- Explain “thermal equilibrium” in your own words.a state in which objects have the same temperature
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.