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Matter & Energy

Grade 2 · Building confidence · 8 questions · Version PG-1S4ITRP-1K0E

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1.Explain “conductor” in your own words.
2.Explain “solid” in your own words.
3.Explain “insulator” in your own words.
4.Explain “heat” in your own words.
5.Explain “condensation” in your own words.
6.Explain “solution” in your own words.
7.Explain “evaporation” in your own words.
8.Explain “liquid” 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 12
  1. Explain “conductor” in your own words.a material that transfers heat or electricity easily
  2. Explain “solid” in your own words.matter with a definite shape and volume
  3. Explain “insulator” in your own words.a material that slows heat or electric transfer
  4. Explain “heat” in your own words.energy transferred because of a temperature difference
  5. Explain “condensation” in your own words.change from gas to liquid
  6. Explain “solution” in your own words.a uniform mixture in which one substance dissolves in another
  7. Explain “evaporation” in your own words.change from liquid to gas at a surface
  8. Explain “liquid” in your own words.matter with a definite volume but changing shape

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.