Grade 2 · lesson 1 of 4

Describe useful material properties

Describe useful material properties using supplied evidence and a solved model.

About 12 minutes, plus any extended practice

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Supplied materials

  • For younger learners, an adult may read each direction aloud; pointing, drawing and spoken explanations count as responses.
  • Paper, drawing space or a browser document.
  • Reference card A: bends without breaking in the supplied test. Reference card B: resists bending in the supplied test.
  • Assessment case 1: Which scientific label fits the specifically described step or feature? Supplied case: Cloth bends around a corner.
  • Assessment case 2: Which scientific label fits the specifically described step or feature? Supplied case: Board keeps its shape.
  • Assessment case 3: Which scientific label fits the specifically described step or feature? Supplied case: Sponge takes in a drop.
  • Assessment case 4: Which scientific label fits the specifically described step or feature? Supplied case: Sheet keeps paper dry.
  • Assessment case 5: Which scientific label fits the specifically described step or feature? Supplied case: Strip bends and returns.
  • Assessment case 6: Which scientific label fits the specifically described step or feature? Supplied case: Pad takes in spilled water.

Learn the idea

A property describes a material, while an object also has a shape and purpose. Use printed property tests. Never taste, burn or heat a material for this activity.

Flexible means bends without breaking in the supplied test. Rigid means resists bending in the supplied test. Absorbent means takes in the supplied water. Water resistant means keeps the supplied water outside.

For flexible, look for the clue “bends without breaking in the supplied test.” For rigid, look for “resists bending in the supplied test.” More than one process can happen in a real situation. Answer about the one described in this question.

  1. Read or listen to the four science words and what each means. Say how the first two differ.
  2. Choose two of the short cases. Point to the clue that helps you choose a science word for each one. You may draw or say your answer.
  3. Answer each practice question. Say which clue helped you, then check the explanation.
  4. Use the extra task to make two examples that show different science words. Draw or say what makes each one fit.
Worked example

See the method in action

Worked reference-card problem: a card states “bends without breaking in the supplied test”; a second states “resists bending in the supplied test.” The first fits flexible and the second fits rigid. The reason is the described function or change, not the order of the cards or a favorite name. If their descriptions exchange places, their category labels exchange too. Keep the supplied descriptions attached to the correct case.

Your turn

Check your reasoning

Your answer is temporary and is not saved to an account. Download your current answer before leaving or reloading. Written work on paper or in another app stays in your own file.

Helpful tips
  • Use the feature “bends without breaking in the supplied test” to justify flexible; do not sort by the name alone.
  • Distinguish rigid (resists bending in the supplied test) from a different process occurring in the same situation.
Which scientific label fits the specifically described step or feature? Supplied case: Cloth bends around a corner.

Feedback appears here after you check. This is practice, not a graded school assessment.

See the answer and explanation

flexible

The answer is flexible. In the notes, it means “bends without breaking in the supplied test.” A property describes a material, while an object also has a shape and purpose. Use printed property tests. Never taste, burn or heat a material for this activity.

Take it further

Create one new case showing flexible and one showing rigid. Expected: the first explicitly shows “bends without breaking in the supplied test”; the second explicitly shows “resists bending in the supplied test.” Explain the distinction by drawing, speaking or writing. A label without a matching feature is incomplete.

Nothing here is saved to an account or sent to a teacher. The answer download includes your current choice and any checked feedback. It does not include choices from the separate More practice section. Download that section separately.

More practice: try new cases

Choose an answer for each problem. Explain your method on paper, then use the feedback to decide what to revisit.

More practice: try new cases
1. Which scientific label fits the specifically described step or feature? Supplied case: Board keeps its shape.
Need a hint?
  • Look for the described feature: resists bending in the supplied test.
  • Compare the clue with each science word. Use only what the case tells you; do not add a new event.
2. Which scientific label fits the specifically described step or feature? Supplied case: Sponge takes in a drop.
Need a hint?
  • Look for the described feature: takes in the supplied water.
  • Compare the clue with each science word. Use only what the case tells you; do not add a new event.
3. Which scientific label fits the specifically described step or feature? Supplied case: Sheet keeps paper dry.
Need a hint?
  • Look for the described feature: keeps the supplied water outside.
  • Compare the clue with each science word. Use only what the case tells you; do not add a new event.

Your choices are temporary. Feedback appears after you check all the answers.

Nothing here is saved to an account or sent to a teacher. Keep your own notes or download them before leaving. The score describes these questions; it does not certify subject mastery.

Check the subject sources

These LifeStarter passages, scenarios and exercises are authored for this Academy with AI assistance and review. External resources keep their publishers’ terms. A grade label suggests a starting level; it does not establish alignment with your school’s complete requirements.