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Melt, Freeze, Boil, Cool is a free printable Grade 2 science worksheet on predicting what heating or cooling will do to a material, aligned to NGSS performance expectation 2-PS1-4. It prints 8 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 6 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Melt, Freeze, Boil, Cool

2-PS1-4

NameDate

Circle the best answer.

1.Bread is toasted, then left to cool. What happens?
  • A.It melts
  • B.It stays toast
  • C.It turns back into bread
2.Chocolate is warmed in a bowl over hot water. What happens?
  • A.It turns hard and black
  • B.It disappears
  • C.It melts into a runny liquid
3.A cold can is taken out of the fridge on a warm day. What appears on the outside?
  • A.Nothing at all
  • B.Ice cubes
  • C.Tiny drops of water
4.An ice pop is left on a sunny table. What happens to it?
  • A.It freezes harder
  • B.It melts into a sticky liquid
  • C.It turns into toast
5.Candle wax drips onto a cold plate. What happens to the drip?
  • A.It catches fire
  • B.It cools and goes hard
  • C.It stays runny
6.Butter is left in a warm kitchen all day. What happens?
  • A.It turns to ice
  • B.It goes hard
  • C.It goes soft and may melt
7.An egg is boiled for ten minutes and then cooled. Will it go runny again?
  • A.No, cooking it is a change that cannot be undone
  • B.Yes, as soon as it cools
  • C.Yes, if you shake it
8.A puddle sits in the hot sun all afternoon. What happens to it?
  • A.It gets deeper
  • B.It freezes
  • C.It dries up as the water goes into the air

LessonPrint · 2-PS1-4 · Set 6 · free to copy for classroom use

Answer key — Melt, Freeze, Boil, Cool

Set 6. Prints on its own sheet.

  1. 1.It stays toast
  2. 2.It melts into a runny liquid
  3. 3.Tiny drops of water
  4. 4.It melts into a sticky liquid
  5. 5.It cools and goes hard
  6. 6.It goes soft and may melt
  7. 7.No, cooking it is a change that cannot be undone
  8. 8.It dries up as the water goes into the air

Last reviewed 2026-09-05. Aligned to 2-PS1-4 of the Next Generation Science Standards.