Inventors and engineers collect data to help them know if their solution is working. Without the data, they can’t be sure.
The spring scale tells how much effort is being put into moving the backpack in different directions.
The number of barks per minute is a measure of how much the dog is barking.
The distance one can see clearly through a visual device tells how effective it is.
Thermometers give us an idea about how much heat energy is being lost or gained.
Sound meters give us data about volume (and some can tell us pitch as well).
Counting recyclable pieces of paper that are improperly disposed of is a measure of how well people are doing in their recycling efforts.
How data is organized can be a challenge for students. Use the example projects as a way for students to see how data is organized in a table.
Many students get caught up in the excitement of building and trying their idea or invention. It’s easy to forget to record the data. But without it, there is no way to demonstrate that the invention or idea worked.