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20
×
Draw ten particles in a balloon that are at room temperature and ten particles in a balloon that are at 60°C.
See teacher
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15
×
Explain how a heat pump works in the summer and in the winter. What is the ground temperature at around 5m below surface?
Heat pump circulates water from the outside ground to cool and warm the home. The ground temperature is around 8-10 degrees C at 5m below surface.
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15
×
Categorize the following as a mechanical mixture, solution, or pure substance. a) Pizza b) Ketchup c) Copper
a) Mixture b) Solution c) Pure substance
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10
×
Name the three gases responsible for the greenhouse effect.
carbon dioxide, methane, nitrous oxides
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5
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What is the name of the transition from Solid to Gas?
Sublimation
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10
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Explain the relationship between heat and kinetic energy.
Heat increases the kinetic energy of particles.
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10
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Name four effects of climate change.
Increased wildfires Increased flooding Decreased ice and glaciers Drought Sea levels rising
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10
×
Explain how a nuclear reactor works to produce electricity.
Refined uranium undergoes nuclear fission which produces heat to turn water to steam. Steam turns turbines and produces electricity.
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5
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What is the name of the transition from Liquid to Solid?
Freezing
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25
×
How would you separate the following mixtures? a) Vegetable oil and sand b) Salt and pepper c) Blood
a) Oil will float and sand will settle b) Add water to dissolve the salt and filter out the pepper. Evaporate water from salt water. c) Centrifuge
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thief
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25
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magnet
Take 25 points!
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rocket
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thief
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eraser
Reset score!
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fairy
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fairy
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baam
Lose 25 points!
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seesaw
Swap points!
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magnet
Take 10 points!
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shark
Other team loses 15 points!
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banana
Go to last place!
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25
×
What are the factors that affect dissolution. Explain each factor if we want to increase dissolution.
1) Temperature - higher temperature 2) Agitation - more agitation 3) Particle Size - smaller particles
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20
×
a) What type of separation is this? b) If the solvent is water, which sample is more soluble in water, O or P?
a) Paper chromatography b) P is more soluble in water
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15
×
Describe one way to prevent conduction, radiation, and convection in homes.
Prevent conduction â use insulators Prevent convection â use weather stripping Prevent radiation â install shiny surfaces in the attic
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