NASA engineers are designing a robot to test the soil on Mars. Which of these describes a constraint?

the spacecraft can only carry 100 pounds of extra weight

the engineers test many prototypes

Mars is closer to the Sun than Earth

the robot takes rock samples from Mars

What would be considered a Fair Test of a prototype?

changing one thing about a prototype after doing a test

doing a lot of research to help solve a problem

designing an entirely different prototype after doing a test

designing two prototypes and testing them at the same time

Which of these describes an iteration?

testing a prototype, making one change, then making an improved prototype

knowing the constraints before starting to design a solution

identifying all aspects of a problem before starting to find solutions

coming up with several possible solutions before making a prototype

What is ALL technology?

anything created to help improve human's lives

How is Math applied with creating a pencil?

What is the optimal length, diameter, or shape for the device?

Creating a writing device that doesn’t use ink

Designing a device with led insert, exterior holder, and attached eraser

Discovery of graphite and the fact that rubber will remove graphite

How is Engineering applied with creating a pencil?

Designing a device with led insert, exterior holder, and attached eraser

Creating a writing device that doesn’t use ink

Discovery of graphite and the fact that rubber will remove graphite

What is the optimal length, diameter, or shape for the device?

How is Technology applied with creating a pencil?

Creating a writing device that doesn’t use ink

Designing a device with led insert, exterior holder, and attached eraser

Discovery of graphite and the fact that rubber will remove graphite

What is the optimal length, diameter, or shape for the device?

How is Science applied with creating a pencil?

Discovery of graphite and the fact that rubber will remove graphite

Creating a writing device that doesn’t use ink

Designing a device with led insert, exterior holder, and attached eraser

What is the optimal length, diameter, or shape for the device?

Apply science and math to designs

Investigate and apply everything

Apply science and math to designs