Party timeline and script.... CHECK!
I'm feeling good, feeling organized! this is going to be a great party and... we're in an air conditioned room for the party! WOHOO!
Mikayla's party is in full swing, I've pre portioned all the experiements, everything is boxed and ready to go to the cabana, I've lined up tables and help and I'm SO excited! this is going to be quite an event!
I have bracelets (like what you get for passing the swim test at camp) in different colors to show who is in which group, I have signs for the tables and all the paper stuff ready.
Here's the lineup of what's going on!
As children enter give bracelets, with table numbers
Ice cream on each table to shake while waiting for all the kids to show up
Take one shaken ice cream apart to take tastes, then move buckets into the kitchen
Insta snow experiment with partners
Play time (with the snow on their plastic plate)
Put snow into their zip lock bags (sharpie to write name on their bag), Wash hands in kitchen by table number
Ice cream and singing (still on debates on this, looking for an easy thing to do since we’ll be taking tastes of homemade ice cream??thoughts?? Mikayla wanted ice cream with nerds on them but she’s not totally sold on it, I want something EASY!!!)
Wipe down tables and reset for next experiment (quick wipe and bring out next bucket)
Send home with bag of goodies
Each table to have favor bags with experiments in separate tubs
Ice cream experiment
Jugs, ice, ziplock bag, milk mixture, rock salt
The science of it all…
Fill the coffee can or large plastic jar half full with crushed ice.
Add about 6 tablespoons of salt to the ice. Seal the container and mix for a few minutes by rolling the container back and forth on the floor. Hey, you might even have to wear gloves! Why? Measure the temperature of the mixture with a thermometer. The salt and ice mixture gets down to about 14 degrees F (-10 degrees C)!
Use the quart size zipper-lock bag to mix the following ingredients:
1/2 cup of half & half cream
1 tablespoon sugar
1/2 teaspoon vanilla extract
Seal tightly, allowing as little air to remain in the bag as possible. Too much air left inside may force the bag open during shaking.
Place the bag inside the coffee can with the ice mixture and seal and place the lid on tightly. Here comes the fun part... find someone who will roll the can back and forth on the floor with you. Only the people who help get to enjoy the ice cream! Roll it everywhere... on the floor, over the bed, under the table, on top of Uncle Bill... just keep rolling it. Five to eight minutes is adequate time for the mixture to freeze into ice cream. You might need to check on your ice cream concoction after 5 minutes to see if it's frozen. If not, keep rolling.
Remove the bag from the can and rinse it well with water. You don’t want any salt water accidentally getting into your ice cream.
Use your spoon to eat the ice cream right out of the bag!
How does it work?
What does the salt do? Just like we use salt on icy roads in the winter, salt mixed with ice in this case also causes the ice to melt. When salt comes into contact with ice, the freezing point of the ice is lowered.
The lowering of the freezing point depends on the amount of salt added. The more salt added, the lower the temperature will be before the salt- water solution freezes. For example, water will normally freeze at 32 degrees F. A 10% salt solution freezes at 20 degrees F, and a 20% solution freezes at 2 degrees F.
When salt is added to the ice, some of the ice melts because the freezing point is lowered. Always remember that heat must be absorbed by the ice for it to melt. The heat that causes the melting comes from the surroundings (the warmer cream mixture). By lowering the temperature at which ice is frozen, you were able to create an environment in which the cream mixture could freeze at a temperature below 32 degrees F into ice cream.
Insta Snow experiment
Ziploc bag with name
Does anyone know what this is (Diaper)
What does it hold, how does it work? (pour bottle of water in it)
These are both excellent examples of a polymer!
The science of it all:
put the premeasured powder in your hands (over your plate)
Have your partner pour the premeasured water into your hands (over your plate)
Quickly pour all of the water into the cup with the Insta-Snow powder. Don’t take your eyes off the erupting snow!
Go ahead... put your fingers in the fluffy fake snow. It looks so real that special effects artists are now using it in movies. If you let the snow sit out, the water will evaporate and the once fluffy snow will turn back into the dry powder. That’s right... it’s reusable!!!
How does it work?
Insta-Snow® is actually derived from the superabsorbent polymer found in baby diapers. The only difference (and it’s a big one) is that the Insta-Snow polymer not only absorbs water but the long chains of molecules swell to an enormous size. The polymer soaks up water using the process of osmosis (water molecules pass through a barrier from one side to the other). When water comes in contact with the polymer, it moves from outside the polymer to the inside and causes it to swell. The polymer chains have an elastic quality, but they can stretch only so far and hold just so much water.
The Insta-Snow reaction is a great example of a physical reaction - a reaction where the substance itself does not change. When an ice cube melts, a physical reaction takes place where the solid ice turns into a liquid, but the substance (water) never changes - it's still water! However, in a chemical reaction, a new substance is formed and energy is either given off or absorbed.
If you think of the Insta-Snow powder is millions of tiny sponges, it's easy to see that neither the Insta-Snow powder or the water was changed. If you allow the water to evaporate, the Insta-Snow powder dries out and returns to it's previous state, ready to be used again.
How long does the hydrated snow last?
The snow will start to dehydrate after a few days due to evaporation. Just spray the top of the snow with water and fluff the snow with your fingers to give it a fresh, fluffy look. You can also let the snow completely dry out to use it again. The dry form of Insta-Snow powder will last forever!
Why does the snow feel cold to the touch?
Since the snow is almost entirely made up of water, and the water is bound to evaporate. The process of evaporation produces a constant cooling effect. That's why it's so much fun to touch!
Will the snow ever turn back into water? No, the fake snow will not melt since it is not really ice. However, the water can be released from the superabsorbent polymer by adding salt. The addition of salt destroys the water absorbing properties of Insta-Snow® forever.
Does Insta-Snow have to be on a special surface?
No, Insta-Snow can be used on almost any surface except untreated wood. Keep the snow off of any surface that might be damaged by water. Surfaces that are ideal include tile, plastic and glass. Insta-Snow will not stain fabric, but normal care should be taken when applying this water-based material.
Can Insta-Snow be thrown away in the trash?
Insta-Snow is very easy to clean up and can be disposed of in the trash. Just brush the surface clean or use a vacuum to pick up the snow. Eventually the hydrated snow will turn back into the dry powder and can be easily swept or vacuumed. Insta-Snow powder is a non-hazardous, non-toxic, environmentally safe polymer.
Test tube (baby soda bottle)
Talk about the baby soda bottle, show what it can do, give them the website to check out more experiments www.stevespangler.com