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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 12 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 puddle sits in the hot sun all afternoon. What happens to it?
  • A.It freezes
  • B.It dries up as the water goes into the air
  • C.It gets deeper
2.A cold can is taken out of the fridge on a warm day. What appears on the outside?
  • A.Ice cubes
  • B.Nothing at all
  • C.Tiny drops of water
3.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 cooling it
  • C.Yes, by adding water
4.Bread is toasted, then left to cool. What happens?
  • A.It melts
  • B.It stays toast
  • C.It turns back into bread
5.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
6.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
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, if you shake it
  • C.Yes, as soon as it cools
8.Butter is left in a warm kitchen all day. What happens?
  • A.It goes hard
  • B.It goes soft and may melt
  • C.It turns to ice

LessonPrint · 2-PS1-4 · Set 12 · free to copy for classroom use

Answer key — Melt, Freeze, Boil, Cool

Set 12. Prints on its own sheet.

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

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