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15
×
What happens to water in distillation?
It becomes a gas permanently
It evaporates and condenses
It freezes
It glows
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15
×
What process turns steam back into water during distillation?
Freezing
Condensation
Sublimation
Evaporation
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15
×
What makes each element unique?
Its weight
Its color
Its atomic structure
Its temperature
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trap
No points!
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rocket
Go to first place!
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shark
Other team loses 25 points!
Okay!
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baam
Lose 15 points!
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15
×
An element cannot be:
Heated
Seen under a microscope
Measured
Broken down by ordinary means
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15
×
An XRF spectrometer is primarily used to:
Identify elements in rocks and soil
Measure electrical conductivity
Measure temperature
Detect radioactivity
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15
×
A chemical reaction involves:
Rearrangement of atoms
Complete destruction of matter
No change in atomic structure
Freezing of chemical bonds
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boom
Lose 50 points!
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gift
Win 10 points!
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rocket
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banana
Go to last place!
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15
×
What happens when magnesium burns in oxygen?
It creates a new compound with different properties
The magnesium disappears
Nothing changes
The oxygen is destroyed
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15
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Which of the following is NOT a compound?
Water
Trail mix
Magnesium oxide
Iron sulfide
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15
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What makes a compound different from its original elements?
It has identical properties
It weighs less
It has new, unique properties
It cannot be separated
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trap
No points!
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gold
Win 50 points!
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fairy
Take points!
5
10
15
20
25
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thief
Give points!
5
10
15
20
25
15
×
Scientists use IR spectrometers to:
Predict chemical reactions
Weigh substances
Detect chemical "signatures"
Measure sound waves
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15
×
What method can separate iron from sulfur in a mixture?
Using a magnet
Shining a light
Heating the mixture
Freezing it
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15
×
An IR spectrometer helps scientists by:
Measuring temperature
Detecting light waves
Analyzing chemical bond vibrations
Predicting weather patterns
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lifesaver
Give 10 points!
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seesaw
Swap points!
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fairy
Take points!
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25
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banana
Go to last place!
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