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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seesaw
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star
Double points!
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fairy
Take points!
5
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25
baam
Lose 20 points!
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trap
No points!
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fairy
Take points!
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25
fairy
Take points!
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banana
Go to last place!
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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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heart
Other team wins 5 points!
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seesaw
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shark
Other team loses 5 points!
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lifesaver
Give 20 points!
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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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banana
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star
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rocket
Go to first place!
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banana
Go to last place!
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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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15
Identify three energy transformations found in this picture.
Electrical to Light
Electrical to Mechanical
Electrical to Sound
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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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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
Identify conduction, convection, and radiation in this photo.
Conduction â the park bench is getting hotter through the particles increasing kinetic energy and warming up
Convection â the breeze
Radiation â the sunlight
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10
Name two types of renewable energy sources and two types of non-renewable energy sources.
