Black Boxes
Drought Stopper
Review
Phase Changes
Vocabulary
100
An explanation of an object, event, or system that cannot be observed directly.
What is a model?
100
The drought stopper system is an example of a _________.
What is a black box?
100
The combination of two or more materials.
What is a mixture?
100
Name the three states of matter.
What is solid, liquid, and gas?
100
The definition of collaboration.
What is working together?
200
Give 2 examples of how scientists use models.
What are things that are very big (the solar system), things that are very small (particles), or things that are impossible to see into (black boxes)?
200
A tube that allows water to flow from a high place, over a higher point, and then down to a lower level.
What is a siphon?
200
A claim needs to be supported by this.
What is evidence?
200
The temperature at which water freezes and melts.
What is 0 degrees celsius?
200
The definition of consensus.
What is everyone agrees?
300
Describe different types of models scientists can construct.
What is drawing a conceptual model or making a physical model?
300
Describe the job of an oceanographer.
What is a scientist who studies ocean and wind currents?
300
This is what scientists and engineers do when their plan fails.
What is improve the plan or try a new plan?
300
True or False: All materials melt at the same temperature.
What is false? Example: Ice melts into liquid water at 0 degrees celsius, chocolate melts at about 50 degrees celsius, and candle wax melts at about 80 degrees celsius.
300
The definition of freezing.
What is the change of state from liquid to solid as a result of cooling?
400
Models represent our best ______ of how things work.
What is explanation?
400
Describe the accident in the Pacific Ocean in 1992 and explain what the data helped the scientists do.
What is a cargo ship lost it's bathtub toys, the scientists studied when/where the cargo washed up on shore, and the scientists used the data to develop better models about the wind and ocean currents in the North Pacific Ocean?
400
An example of an extract that you drink.
What is tea or coffee?
400
This causes matter to melt.
What is heat energy?
400
The definition of condensation.
What is the change of state from gas to liquid?
500
The process for developing a model of the black box.
What is observe to gather information, build a model, analyze how the model performs, and revise/edit the model based on new information?
500
Describe how a drought stopper system works.
What is the water pushes the air from the tube and gravity makes the water flow from the inflow end of the siphon, through the tube and out through the other end, emptying the container.
500
Crystals are often identified by this property.
What is shape?
500
Describe the difference between dissolving and melting.
What is dissolving is when a solid breaks into smaller pieces and becomes incorporated into a liquid while melting is to change state from a solid to a liquid state as a result of warming?
500
The definition of water vapor.
What is water in it's gas state?
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