Fahrenheit, Celcius, and Kelvin all invented a different scale to measure the same thing. What were they measuring?
Temperature.
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15
Name two factors that speed up evaporation.
wind and heat.
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15
What is the change in state of matter during melting?
solid + heat = liquid
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20
Explain the process of melting using the particle model.
When heated, the particles gain energy, move more quickly, and pull further apart. With enough energy, they escape from the solid and change into a liquid.
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10
What is evaporation?
It is when a liquid turns into a gas.
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15
What is transpiration?
It is when water evaporates from the leaves of plants.
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15
How does evaporated water get back to Earth?
It falls as rain or snow.
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banana
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15
Explain the process of condensation.
When gas particles cool down and lose energy they change into a liquid.
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10
Where in the water cycle does evaporation happen?
Rivers, lakes, seas, and plants.
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10
Give an example of a solute.
salt, sugar, coffee powder (any solid that can be dissolved)
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15
On Kelvin's temperature scale, what did he call -273 degrees Celcius?