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Physica
Freezing
Does hot water freeze faster than
cold water?
Do different liquids take different
amounts of time to freeze?
Will salt, tap, or bottled water
freeze fastest?
Do some sizes and shapes of containers
allow water to freeze faster than others?
What kind of insulating material keeps
an ice cube frozen for a longer time?
Does water change size when it freezes?
Melting
When snow melts, how much water
does it make?
Will pressure cause ice to melt, even
if the temperature is below freezing?
4)
Do different colors of crayons melt
at different temperatures?
Does butter melt faster in the sun
or under a lamp?
Does ice change size when it melts?
Evaporation,
Boiling, and Gases
How do temperature and wind affect
evaporation rate?
Do salt and soap affect evaporation rate?
Do different liquids evaporate at the
same rate?
Does the thickness of a liquid affect
its evaporation rate?
Does the size and shape of a container
affect evaporation rate?
Do different kinds of frozen liquids take
different amounts of time to thaw?
Do different brands of frozen pops melt
at the same rate?
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RE Scienccee: SoFlaids, Liquids,jaencd tG Ideas
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ases (3–4
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How does the water level in a lake change
with the weather?
How does humidity affect evaporation
rate?
Can hair or animal fur be used
to measure humidity?
Mixtures
Does salt dissolve fastest in hot, warm,
room-temperature, or cold water?
Does salt water stay warm longer than
tap water?
Can water vapor be captured?
How does salt affect the boiling point
of water?
Does the boiling point of water change
at different elevations?
How much sugar can be added to water
before the water becomes saturated?
Do different liquids take different amounts
of time to boil?
Do stains come out better in hot or cold
water?
How long does it take for a bathroom
mirror to fog up using different
temperatures of shower water?
Do equal volumes of different liquids
weigh different amounts?
Does a balloon stay inflated longer
in warm or cold air?
Do soap bubbles last longer on warm
or cold days?
Does the size of a helium balloon
determine how long it will stay afloat?
How long will a volleyball keep its pressure
in different temperatures?
Which materials lose their individual
properties when combined with water,
and which keep them?
How much salt must be added to a cup
of water before it becomes translucent?
Opaque?
How much salt does it take to make
an egg float?
Can salt be separated from water?
Do different gases weigh different
amounts?
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