A representation that explains how something is built or how it works.
What is a model?
100
Using one or more of your senses to gather information.
What is observation?
100
an engineer
What is a person who uses scientific knowledge to design useful things called?
100
Any system that cannot be directly observed or easily understood.
What is a black box?
200
An educated guess. (or) A possible explanation for a set of observations or answer to a scientific question.
What is a hypothesis?
200
A drawing of a system or model. (or) Explanatory ideas that are expressed in words and math. These are used when it is not possible to build physical models because of time, distance, scale or inaccessibility.
What is a conceptual model?
200
Data are the facts, figures and other evidence gathered through observations.
What is data?
200
They collaborate.
What is it called when scientists share ideas and solutions?
200
Building Black Boxes, Drought Stopper, Hum Dinger, Free-Rolling Go-Cart, and Self-Propelled Go-Cart.
What are the five black box experiments that we have done?
300
The outcome of an experiment.
What are results?
300
A 3-D construction designed to explain or represent how something works.
What is a physical model?
300
A decision about how to interpret what you have learned from an experiment.
What is a conclusion?
300
Collaboration.
What is a situation in which scientists agree called?
300
Sometimes science tries to explain things that cannot be seen.
What is the main idea behind working with black boxes and hum dingers? (Think about which sense you were not able to use)
400
Changing only one variable at a time.
What is a control of an experiment?
400
A tube that moves liquid out of a container by gravity, provided that the outflow end is lower than the inflow end.
What is a siphon?
400
1) Ask a Q 2) Do background research 3) Construct a hypothesis 4) Experiment 5) Analyze data and draw a conclusion 6) Report results
What are the six steps of the scientific method?
400
Designs can be improved with the ideas of different people.
What is always true about a design team? (Think about how the ideas and number of people relate) (Clue: Two heads are better than one.)
400
The rubber bands.
In the Go-Cart Activity, the energy to propel the cart 2 m comes from what?
500
Unlike a theory, a scientific law does not provide an explanation, but describes an observed pattern in nature.
What is the difference between a Scientific Theory and a Scientific Law?
500
A bell.
What property does a hum dinger share with a doorbell?
500
A manipulated variable (aka Independent Variable) is what a scientist changes. (Ex: The Brand of Diaper) A responding variable (AKA Dependent Variable) is the variable that changes because of the manipulated variable. (Ex: How much water was absorbed.)
What are responding and manipulated variables?
500
Design, Construct, Test, Evaluate & Redesign
When building a new design, what sort of procedure should an engineer use to get the best design?
500
Hum Dinger. Must explain how the circuit is set up with the wire and battery, what the lever did, etc...
What black box experiment included a circuit, lever, and a switch? Explain the set up.