Grade 2 · lesson 3 of 4

Name water movements

Name water movements using supplied evidence and a solved model.

About 12 minutes, plus any extended practice

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: water falls from clouds. Reference card B: water flows over land.
Assessment case 1: Which scientific label fits the specifically described step or feature? Supplied case: Rain reaches the ground.
Assessment case 2: Which scientific label fits the specifically described step or feature? Supplied case: Rainwater travels downhill on soil.
Assessment case 3: Which scientific label fits the specifically described step or feature? Supplied case: Water soaks into soil.
Assessment case 4: Which scientific label fits the specifically described step or feature? Supplied case: Lake water becomes vapor.
Assessment case 5: Which scientific label fits the specifically described step or feature? Supplied case: Snow falls from a cloud.
Assessment case 6: Which scientific label fits the specifically described step or feature? Supplied case: Puddle water enters soil pores.

Learn the idea

Precipitation delivers water from the atmosphere. Runoff moves over land. Infiltration enters the ground, and evaporation changes liquid into vapor.

Precipitation means water falls from clouds. Runoff means water flows over land. Infiltration means water enters the ground. Evaporation means liquid water becomes vapor.

For precipitation, look for the clue “water falls from clouds.” For runoff, look for “water flows over land.” More than one process can happen in a real situation. Answer about the one described in this question.

Read or listen to the four science words and what each means. Say how the first two differ.
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.
Answer each practice question. Say which clue helped you, then check the explanation.
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 “water falls from clouds”; a second states “water flows over land.” The first fits precipitation and the second fits runoff. 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 “water falls from clouds” to justify precipitation; do not sort by the name alone.
Distinguish runoff (water flows over land) from a different process occurring in the same situation.

See the answer and explanation

precipitation

The answer is precipitation. In the notes, it means “water falls from clouds.” Precipitation delivers water from the atmosphere. Runoff moves over land. Infiltration enters the ground, and evaporation changes liquid into vapor.

Take it further

Create one new case showing precipitation and one showing runoff. Expected: the first explicitly shows “water falls from clouds”; the second explicitly shows “water flows over land.” Explain the distinction by drawing, speaking or writing. A label without a matching feature is incomplete.

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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.

1. Which scientific label fits the specifically described step or feature? Supplied case: Rainwater travels downhill on soil.infiltrationevaporationprecipitationrunoff

Need a hint?

Look for the described feature: water flows over land.
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: Water soaks into soil.precipitationrunoffinfiltrationevaporation

Need a hint?

Look for the described feature: water enters the ground.
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: Lake water becomes vapor.evaporationprecipitationrunoffinfiltration

Need a hint?

Look for the described feature: liquid water becomes vapor.
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.