Recording Data: Tables & Graphs
Lesson preview: the Mini Lesson and Vocabulary are open to everyone. Guided practice, exercises, the parent checklist and the printable PDF worksheet come with full access (free 7-day trial or membership).
What you will learn
- 1Name the parts of a clear data table: title, column headers, and units
- 2Read values from a data table or simple graph
- 3Choose the right graph type for the data you collected
- 4Spot patterns and trends in a graph or table
Mini Lesson
When scientists run an experiment, they record what they observe so anyone can check the results. The two most useful tools for this are data tables and graphs. A table organizes the numbers neatly. A graph turns those numbers into a picture so trends jump out.
Building a Data Table
- Give the table a clear title that says what was measured.
- Label the columns — the first column is usually the independent variable, the next column is what you measured (the dependent variable).
- Always include the unit in the column header (for example cm, in, g, mL, °C, °F, or seconds).
- Write each measurement on its own row, and keep the rows in order.
Choosing the Right Graph
- Bar graph — compare separate groups (e.g. plant height in 3 different soils).
- Line graph — show how something changes over time (e.g. temperature each hour).
- Pictograph — count items using a small picture for each unit.
- Every graph needs a title, two labeled axes, and a unit on each axis.
Reading a Graph
- Find the bar or point you want to read.
- Look across (or down) to the value axis to see the number.
- Always say the value with its unit — "12 cm" tells more than just "12".
- Compare bars or points to spot the largest, smallest, and any pattern.
Words to know
data table
A grid of rows and columns used to record measurements.
bar graph
A graph that uses bars to compare separate groups.
line graph
A graph that shows how something changes over time.
axis
A labeled line on a graph (the x-axis goes across, the y-axis goes up).
unit
The kind of measurement, such as cm, g, mL, or seconds.
trend
A pattern in the data — values going up, going down, or staying the same.
Tip: a good data table has neat columns, units in the header, and one measurement per row. If a friend reads it, they should know exactly what was tested.
Unlock the full HSEA system for 7 days.
Add your first kid profile and your 7 days start: every lesson in every grade, saved progress for each child. Nothing to set up, no card required, nothing to cancel.
- ✓ All 1,880 lessons, Grades 1–6, every subject
- ✓ Profiles + saved progress for every kid
- ✓ Printable lessons with answer key