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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 14 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.A tray of water is left in the freezer overnight. What will you find in the morning?
  • A.Warm water
  • B.An empty tray
  • C.Solid ice
2.Candle wax drips onto a cold plate. What happens to the drip?
  • A.It cools and goes hard
  • B.It catches fire
  • C.It stays runny
3.A snowman is left in the spring sunshine. What happens to it?
  • A.It grows bigger
  • B.It melts into water
  • C.It turns into ice cream
4.Butter is left in a warm kitchen all day. What happens?
  • A.It goes soft and may melt
  • B.It goes hard
  • C.It turns to ice
5.An egg is boiled for ten minutes and then cooled. Will it go runny again?
  • A.Yes, as soon as it cools
  • B.No, cooking it is a change that cannot be undone
  • C.Yes, if you shake it
6.Water is boiled in a pan with a lid on. What do you see on the inside of the lid?
  • A.Drops of water
  • B.Dry dust
  • C.Salt
7.The melted lolly is put back in the freezer. What happens?
  • A.It turns into steam
  • B.It stays runny for ever
  • C.It freezes solid again
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 14 · free to copy for classroom use

Answer key — Melt, Freeze, Boil, Cool

Set 14. Prints on its own sheet.

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