FACEBOOK SUMMER CHALLENGES 6 Weeks of Family Challenges (Posted HERE on our Facebook Page) ~Complete the Activity and post your pictures of the Process and/or product to our Facebook page. The next time you are in the library, collect your PRIZE Week 3. Weather Science: Make Homemade Ice-cream in a Bag! Notes: Serves 1 Prep Time is a few minutes! Forget endlessly cranking the handle of an ice-cream maker. After combining the ingredients, you can simply shake up your own pouch of soft serve -- First gather your supplies. Youll need: Ice cubes (enough to fill each gallon-size bag about half full) 1 cup heavy cream or half and half (Milk will provide a less rich, lower calorie ice cream, while using heavy cream will have the opposite effect.) 1/2 cup salt (The bigger the granules, the better. Kosher or rock salt works best, but table salt is fine.) About 2 tablespoons sugar 1/2 teaspoon vanilla extract 1 small [pint-size] ziplock bag 1 large [gallon-size] ziplock bag Your favorite toppings such as chocolate chips, cereal pieces, fresh fruit, Sprinkles, crushed Oreos, peanut butter, or chocolate syrup, etc. A spoon to enjoy it How to make it: Mix the salt around in the ice and set aside. Combine the sugar (solid), half and half (liquid), and vanilla extract (liquid) in the smaller [pint-size] bag and seal it tightly. Make sure it is tightly sealed so you don’t get salty ice-cream! Place the salt and ice in the larger [gallon-size] bag, then place the sealed smaller bag inside as well. Make sure the smaller bag gets buried in the ice. Seal the bigger bag. Now shake the bags until the mixture hardens and looks like ice cream (about 10-15 minutes). You might want to use a towel or gloves to hold them, since they will be very cold and slippery from condensation. Feel the small bag to determine when its done. Once the ice-cream has formed, you can add some fun toppings, or you can eat it plain. Eating it right out of the bag is half the fun, but do not get the salt from the outside of the bag into the ice-cream. (You might want to give it a quick wipe with a cloth before you eat from it.) Easy cleanup too! ENJOY! ~If you want to try a comparison, pour a couple of tablespoons of the small bag’s mixture into a dish before sealing and putting into larger bag. Put the dish in the freezer. After the bags are shaken into ice-cream consistency, take out the dish from the freezer and compare the difference in texture and consistency. Discuss how the processes make different results. Why? - Science is how we explain the world around us. Kids are always looking for answers to questions about why things are the way they are. Making ice cream is a fun way to introduce the beginning concepts of science—and cool off on a hot day, too! Everything on Earth is in liquid, solid, or gas form. Today’s focus is on liquids and solids. For example, a table is a chair and a cookie is a solid. But water and milk are liquids. Liquids are things that cant hold their shape, such as apple juice. So “Is ice cream a liquid or a solid?” Ice cream is clearly a solid. But what about when it melts? Can something be both a solid and a liquid? What happens when the temperature of something changes. (For example a melting ice-cube…)
Posted on: Tue, 15 Jul 2014 05:13:55 +0000
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