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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 18 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 cold can is taken out of the fridge on a warm day. What appears on the outside?
  • A.Tiny drops of water
  • B.Nothing at all
  • C.Ice cubes
2.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
3.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
4.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
5.Bread is toasted, then left to cool. What happens?
  • A.It melts
  • B.It turns back into bread
  • C.It stays toast
6.Cake batter is baked in the oven. Can the cake be turned back into batter?
  • A.No, baking makes a change that cannot be undone
  • B.Yes, by adding water
  • C.Yes, by cooling it
7.Water is boiled in a pan with a lid on. What do you see on the inside of the lid?
  • A.Dry dust
  • B.Drops of water
  • C.Salt
8.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

LessonPrint · 2-PS1-4 · Set 18 · free to copy for classroom use

Answer key — Melt, Freeze, Boil, Cool

Set 18. Prints on its own sheet.

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

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