Let's Take This Outside!
Let's Take This Outside!
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Winter is here!
Winter is here!
As the weather is changing, it is important to be prepared. Being underdressed in cold weather can lead to condition called frostbite.
As the weather is changing, it is important to be prepared. Being underdressed in cold weather can lead to condition called frostbite.
What is frostbite?
What is frostbite?
Frostbite occurs when skin and underlying tissues freeze. The most common cause of frostbite is exposure to cold-weather conditions.
Frostbite occurs when skin and underlying tissues freeze. The most common cause of frostbite is exposure to cold-weather conditions.
Temperature and cold exposure time determine the risk.
Temperature and cold exposure time determine the risk.
Severity
Severity
Frostbite starts as frostnip and progressively becomes more dangerous as skin becomes more damaged.
Frostbite starts as frostnip and progressively becomes more dangerous as skin becomes more damaged.
Signs and Symptoms
Signs and Symptoms
Redness or pain in any skin area may be the first sign of frostbite.
Redness or pain in any skin area may be the first sign of frostbite.
Other signs include:
Other signs include:
a white or grayish-yellow skin area
a white or grayish-yellow skin area
skin that feels unusually firm or waxy
skin that feels unusually firm or waxy
numbness
numbness
Acorn Smashin'
Acorn Smashin'
Materials:
Materials:
Acorns, Large Rocks, Pencil, Paper, Scale (optional)
Acorns, Large Rocks, Pencil, Paper, Scale (optional)
Step 1
Step 1
Gather acorns. If you can't find any acorns, small soft rocks will work.
Gather acorns. If you can't find any acorns, small soft rocks will work.
Use you palm to get a feel of how heavy (similar to mass) the acorn. Trace the acorn on a piece of paper to record how much space it occupies (its volume).
Use you palm to get a feel of how heavy (similar to mass) the acorn. Trace the acorn on a piece of paper to record how much space it occupies (its volume).
If you have a scale, use it to record the mass.
If you have a scale, use it to record the mass.
Step 2
Step 2
Smash the acorns (or small rocks) with a large rock or other heavy object.
Smash the acorns (or small rocks) with a large rock or other heavy object.
Place the pieces on your paper, and trace their outline.
Place the pieces on your paper, and trace their outline.
Step 3
Step 3
Compare how the jagged shaped pieces result in a different volume than that of the original.
Compare how the jagged shaped pieces result in a different volume than that of the original.
What do you notice?
What do you notice?
Step 4
Step 4
Put the pieces in your palm. Does the weight feel similar to the when the acorn was whole?
Put the pieces in your palm. Does the weight feel similar to the when the acorn was whole?
If you used a scale, do the pieces show the same number when put on again?
If you used a scale, do the pieces show the same number when put on again?
Step 5
Step 5
Mix the pieces of the acorn into a glass of water. Can you separate the pieces back from the water?
Mix the pieces of the acorn into a glass of water. Can you separate the pieces back from the water?
If you used a scale, you can take the mass of the water before and after adding the acorn pieces. Does it change?
If you used a scale, you can take the mass of the water before and after adding the acorn pieces. Does it change?
You likely are able to pick out the pieces of acorns. This means that the acorn was NOT dissolved into the water!
You likely are able to pick out the pieces of acorns. This means that the acorn was NOT dissolved into the water!
If you could collect all the pieces and take the mass, it would have the same mass as the original item because the matter has separated but not been lost!
If you could collect all the pieces and take the mass, it would have the same mass as the original item because the matter has separated but not been lost!
Check out these fun links & videos for more information about these topics!
Check out these fun links & videos for more information about these topics!
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