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Kindergarten · Science · Unit 9 of 9

Solid or Liquid?

Cold makes things freeze. Warm makes them melt.

What your child practices

Practices telling solids from liquids, and noticing that warming makes ice, snow, butter and chocolate melt into liquids while cooling makes water freeze into a solid.

New York State Learning Standards learning standard: K-PS1-1 · matter can be a solid or a liquid, depending on how warm or cold it is

How we explain it

Children can open this short lesson before they practice.

  1. A solid keeps its shape, like ice.
  2. A liquid flows and pours, like water.
  3. Warm makes things melt. Very cold makes water freeze.

Example: Ice sits in a warm room. What happens? Warm makes ice melt. It turns into water. Answer: it melts

Solid or Liquid? in New York

In the New York State Learning Standards, this is unit 9 of 9 in Kindergarten Science, after Make It Work.

Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.

Source: New York State Education Department (NYSED)

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    Which can you pour?

    • Water
    • A book
    • A brick
    • A stone

  2. Question 2

    Icicles drip and melt when the air gets…

    • darker
    • snowier
    • warmer
    • colder

  3. Question 3

    Which melts in your warm hand?

    • A rock
    • A block
    • An ice cube
    • A coin

  4. Question 4

    Ice melts fastest…

    • in the freezer
    • in the sun
    • in a cooler
    • in the snow

  5. Question 5

    A snowman melts on a warm day. The snow turns into…

    • water
    • rock
    • wood
    • sand

  6. Question 6

    How can you keep ice from melting on a hot day?

    • Put it in warm water
    • Put it in a cooler
    • Put it in the sun
    • Put it on the stove

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