Sixth Grade · Science · week 25

Analyzing your light and growth data

Organize plant-growth measurements into a data table and line graph, and draw a conclusion about the effect of light supported by that data.

Raw measurements scattered across several days of notes are hard to make sense of; organizing them into a table, then a graph, reveals the pattern at a glance. A data table for this experiment should have one column for the date or day number and one column for each seedling's height, recorded in the same units, centimeters is standard, every time.

A line graph turns that table into a picture: day number goes along the bottom, the x-axis, height goes up the side, the y-axis, and a separate line, ideally in a different color, tracks each seedling over time. A conclusion, in science, is a claim about what the data shows, backed directly by specific numbers from your own table or graph, not just a general impression.

📋 For the teacher
Teach it (10–15 min):
  • Build the data table together first, neatly, before attempting the graph; a messy table makes a messy, confusing graph.
  • Use graph paper or a simple grid if available, and use two different colors or line styles for the two seedlings.
  • Push for conclusions that cite an actual number from the table, not vague statements like "it grew a lot."
  • If your real seedlings are still growing, use your own real numbers this week instead of, or alongside, the example data.
Talk about it:
  • What did your own data show, if you are running the real experiment?
  • Why can a graph make a pattern easier to see than a table of numbers alone?
  • Why does a good conclusion need specific numbers, not just a general feeling about the result?

Mastery looks like: They can build an accurate data table and line graph from growth measurements and write a conclusion that cites specific data.

Common stumbles: Mixing up which axis holds time versus the measured variable; writing a vague conclusion with no numbers to support it.

Homework for this lessonType it, write it with a stylus, or print it for pencil & paper.open →
Records attendance + 15 min of Science for this learner.
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