States of Matter Vocabulary · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.

Solid, liquid, and gas

Science · Matter & Materials · ages 5-7
Name ______________________   Date ____________

  1. Water boils in a pot and turns into steam. The steam spreads out into the air. What state of matter is steam?

    • solid
    • liquid
    • gas

  2. Ice is hard and keeps its shape. What state of matter is it?

    • solid
    • liquid
    • gas

  3. A liquid keeps its own shape, just like a solid does.

    Circle one:   True   False

  4. You leave an ice cube in the sun. Soon it turns into water. What is happening?

    • A change of state
    • The ice is disappearing forever
    • The ice is turning into a gas

  5. Juice pours out of a bottle and flows into a glass. What state of matter is juice?

    • Solid, because it is hard
    • Liquid, because it flows
    • Gas, because it fills the container

  6. Look at a spoon, some water, a wooden block and a toy car. How many of them are solids?

    Answer: ______________

  7. Three jars hold a pebble, some orange juice, and air from a balloon. Which jar holds a gas?

    • The jar with the pebble
    • The jar with orange juice
    • The jar with balloon air

  8. Leo says water boiling into steam means the water just disappears. What is wrong with that?

    • Nothing, Leo is right
    • The water changes into steam and does not disappear
    • Water cannot boil into steam
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Answer key

For grown-ups. Fold this page away before handing over the rest.

Solid, liquid, and gas W1-mt_1JFUNQDwAJ-s1

  1. gas · Steam spreads out and fills the space around it, so it is a gas. Real steam is invisible. The white cloud above a pot is tiny drops of water.
  2. solid · Ice keeps its own shape, so it is a solid. It is a hard solid, like a rock.
  3. False · A liquid flows and takes the shape of its container. It does not keep its own shape.
  4. A change of state · Melting is a change of state: solid ice turns into liquid water.
  5. Liquid, because it flows · Juice flows and takes the shape of the glass, so it is a liquid.
  6. 3 · The spoon, the block and the toy car keep their own shape, so they are solids. Water flows, so it is a liquid. That makes 3 solids.
  7. The jar with balloon air · Air spreads out and fills its jar, so it is a gas. The pebble is a solid and the juice is a liquid.
  8. The water changes into steam and does not disappear · Boiling is a change of state. The water becomes steam, a gas. It does not disappear.
Worksheet · LightMySky