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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 17 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.Butter is left in a warm kitchen all day. What happens?
  • A.It turns to ice
  • B.It goes soft and may melt
  • C.It goes hard
2.Candle wax drips onto a cold plate. What happens to the drip?
  • A.It catches fire
  • B.It stays runny
  • C.It cools and goes hard
3.The melted lolly is put back in the freezer. What happens?
  • A.It freezes solid again
  • B.It turns into steam
  • C.It stays runny for ever
4.An ice pop is left on a sunny table. What happens to it?
  • A.It turns into toast
  • B.It freezes harder
  • C.It melts into a sticky liquid
5.A snowman is left in the spring sunshine. What happens to it?
  • A.It melts into water
  • B.It turns into ice cream
  • C.It grows bigger
6.Bread is toasted, then left to cool. What happens?
  • A.It melts
  • B.It stays toast
  • C.It turns back into bread
7.Water is boiled in a pan with a lid on. What do you see on the inside of the lid?
  • A.Salt
  • B.Drops of water
  • C.Dry dust
8.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

LessonPrint · 2-PS1-4 · Set 17 · free to copy for classroom use

Answer key — Melt, Freeze, Boil, Cool

Set 17. Prints on its own sheet.

  1. 1.It goes soft and may melt
  2. 2.It cools and goes hard
  3. 3.It freezes solid again
  4. 4.It melts into a sticky liquid
  5. 5.It melts into water
  6. 6.It stays toast
  7. 7.Drops of water
  8. 8.No, cooking it is a change that cannot be undone

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