Materials
Structures
Fair Tests
100
What is an example of a flexible material?
Multiple correct answers...
ex. plastic, string, etc.
100
Is this structure stable?
Yes.
100
If we build two chairs and compare how strong they are by having Mr. W sit on one and Ms. G sit on the other, is that a fair test?
NO!
200
What is an example of a brittle material?
Multiple answers...
Glass, graphite, etc.
200
What makes this structure stable?
-Wide Base of Support
or
-Triangles
200
We want to know if wood is stronger than steel. We need to build two bridges that have the same...
the same... design/shape/measurements.
300
What does is mean if a material is malleable?
You can bend, or squeeze it and the material will stay in the new shape that you left it in. Examples: clay, pipe cleaners, aluminum foil.
300
What could you do to make this structure more stable?
More than one answer...
- stack the cubes under the corners
- make it shorter
- line up the cubes
- glue the cubes together with cement
300
What is a fair test?
is a scientific experiment where only one thing is purposely changed by the experimenter.