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Grade 1 · lesson 1 of 4

Separate daytime and nighttime objects

Separate daytime and nighttime objects using supplied evidence and a solved model.

About 12 minutes, plus any extended practice

Download the grade pack

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: nearby star supplying daylight. Reference card B: object reflecting sunlight around Earth.
  • Assessment case 1: Which scientific label fits the specifically described step or feature? Supplied case: Object providing daylight.
  • Assessment case 2: Which scientific label fits the specifically described step or feature? Supplied case: Object with reflected-light phases.
  • Assessment case 3: Which scientific label fits the specifically described step or feature? Supplied case: Distant light point in night drawing.
  • Assessment case 4: Which scientific label fits the specifically described step or feature? Supplied case: White atmospheric water collection.
  • Assessment case 5: Which scientific label fits the specifically described step or feature? Supplied case: Our nearest star.
  • Assessment case 6: Which scientific label fits the specifically described step or feature? Supplied case: Earth’s natural satellite.

Learn the idea

The Sun is a star and gives Earth light. The Moon reflects sunlight and can be visible by day or night. Use drawings; never stare directly at the Sun.

Sun means nearby star supplying daylight. Moon means object reflecting sunlight around Earth. Distant star means distant light-producing object. Cloud means visible water droplets or ice in air.

For Sun, look for the clue “nearby star supplying daylight.” For Moon, look for “object reflecting sunlight around Earth.” 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 “nearby star supplying daylight”; a second states “object reflecting sunlight around Earth.” The first fits Sun and the second fits Moon. 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 “nearby star supplying daylight” to justify Sun; do not sort by the name alone.
  • Distinguish Moon (object reflecting sunlight around Earth) from a different process occurring in the same situation.
Which scientific label fits the specifically described step or feature? Supplied case: Object providing daylight.

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

See the answer and explanation

Sun

The answer is Sun. In the notes, it means “nearby star supplying daylight.” The Sun is a star and gives Earth light. The Moon reflects sunlight and can be visible by day or night. Use drawings; never stare directly at the Sun.

Take it further

Create one new case showing Sun and one showing Moon. Expected: the first explicitly shows “nearby star supplying daylight”; the second explicitly shows “object reflecting sunlight around Earth.” 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: Object with reflected-light phases.
Need a hint?
  • Look for the described feature: object reflecting sunlight around Earth.
  • 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: Distant light point in night drawing.
Need a hint?
  • Look for the described feature: distant light-producing object.
  • 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: White atmospheric water collection.
Need a hint?
  • Look for the described feature: visible water droplets or ice in air.
  • 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.