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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 20 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 goes soft and may melt
  • B.It goes hard
  • C.It turns to ice
2.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
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.An ice pop is left on a sunny table. What happens to it?
  • A.It melts into a sticky liquid
  • B.It freezes harder
  • C.It turns into toast
5.Chocolate is warmed in a bowl over hot water. What happens?
  • A.It melts into a runny liquid
  • B.It disappears
  • C.It turns hard and black
6.A cold can is taken out of the fridge on a warm day. What appears on the outside?
  • A.Ice cubes
  • B.Tiny drops of water
  • C.Nothing at all
7.A puddle sits in the hot sun all afternoon. What happens to it?
  • A.It freezes
  • B.It gets deeper
  • C.It dries up as the water goes into the air
8.A tray of water is left in the freezer overnight. What will you find in the morning?
  • A.Solid ice
  • B.An empty tray
  • C.Warm water

LessonPrint · 2-PS1-4 · Set 20 · free to copy for classroom use

Answer key — Melt, Freeze, Boil, Cool

Set 20. Prints on its own sheet.

  1. 1.It goes soft and may melt
  2. 2.It cools and goes hard
  3. 3.It melts into water
  4. 4.It melts into a sticky liquid
  5. 5.It melts into a runny liquid
  6. 6.Tiny drops of water
  7. 7.It dries up as the water goes into the air
  8. 8.Solid ice

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