Subscribe

2nd grade · Science · Unit 1 of 11

Solids & Liquids

Melting, freezing and steam

What your child practices

Sorting solids and liquids, describing melting, freezing and boiling, and changes that can or can't be undone.

Alabama Course of Study content standard: 2.1; 2.4; 2.9 · sorting solids and liquids by their properties, and heating and cooling changes

How we explain it

Children can open this short lesson before they practice.

  1. A solid keeps its shape, like a spoon or an ice cube.
  2. A liquid flows and takes the shape of its container, like juice.
  3. Warming melts solids into liquids. Cooling freezes liquids into solids.

Example: What happens to water in the freezer? The freezer is very cold. Cold turns liquid water into a solid. Answer: it freezes into ice

Solids & Liquids in Alabama

In the Alabama Course of Study, this is unit 1 of 11 in 2nd grade Science, before Changing Materials.

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: Alabama State Department of Education (ALSDE)

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

    What happens when you warm up butter?

    • 🧈It gets softer and melts
    • 🪨It turns into stone
    • 💨It becomes a gas right away

  2. Question 2

    Which one is a liquid?

    • 🧱a brick
    • 🥛milk
    • 🥄a spoon

  3. Question 3

    Is it a solid or a liquid? Tap an item, then tap its basket.

    Sort into: 🧱 solid · 💧 liquid

    • 🧊ice cube
    • 🥄spoon
    • 🥛milk
    • 🍯honey
    • 🧃juice
    • 🍎apple

  4. Question 4

    Which one is a solid?

    • ♨️steam
    • 🧃orange juice
    • 🪵a wooden block

  5. Question 5

    What happens to a puddle of water on a very cold day?

    • 🧊It can freeze into ice
    • 🧃It becomes juice
    • 🏖️It turns into sand

  6. Question 6

    Which words describe a solid?

    • 🧱hard and keeps its shape
    • 💧flows and pours
    • 💨floats away in the air

More 2nd grade