Rocket tapes three tubes together like a wide stand.
Then the crew builds the tower up on top.
Nova counts. "Eight, nine, ten! It stands!"
Raven measures carefully. "It is a little shorter than before."
"Shorter, but standing," Rocket says. "That counts!"
| Version | Base | How tall (inches) | Stood 10 seconds? |
|---|---|---|---|
| Rocket version 1 | One skinny tube | 30 | No |
| Rocket version 2 | Three tubes, wide | 26 | Yes |
Version 1 was taller, but it fell.
The challenge says it must stand for ten seconds.
So version 2 is the one that meets the goal.
| Idea | True or false? |
|---|---|
| The wider base helped the tower stand. | ? |
| A taller tower that falls still meets the goal. | ? |
| Version | How tall (inches) | Stood 10 seconds? |
|---|---|---|
| Your version 1 | ||
| Your version 2 |
Version 2 lost four inches of height.
But it gained a strong, wide base.
That trade off helped it meet the goal.
| Result | True or false? |
|---|---|
| Version 2 stood for ten seconds. | ? |
| Version 2 was taller than version 1. | ? |
| The crew told the truth about height. | ? |
You improved your tower like a real engineer!
Tomorrow is Build Day.