1. New York Style Cheesecake By: Emily McCadams & Sammi Taylor

2. Ingredients 2 lbs of cream cheese 1 cup of sugar 2 eggs 1 tspn vanilla extract 2 tblespn cornstarch 1 cup sour cream 1 ½ cups graham cracker crumbs 6 tblespn butter

3. Preheat oven to 400 degrees F (205 degrees C). Mix graham cracker crumbs, melted butter, and 1/4 cup sugar together. Press mixture onto the bottom of one 9 or 10 inch springform pan. Place in freezer for 10 minutes. Cream 3/4 cup of the sugar and cream cheese until smooth. Beat in eggs, vanilla, and cornstarch until just mixed. Stir in sour cream until blended. Pour into prepared crust. Bake at 400 degrees F (205 degrees C) for 45 minutes. Turn oven off and leave cake in oven with the door ajar for 3 hours. Serve with your favorite topping. Makes 12 slices

4. Conversions 908 g of cream cheese 177.45 mL of white sugar 2 eggs 5 mL of vanilla extract 30 mL of corn starch 236.6 mL of sour cream 12 fl. Oz of graham cracker crumbs 90 mL of butter 59.15 of white sugar

5. Chemical Changes Cooking the mixtures turns it from a liquid to a viscous solid.

6. Physical Changes The butter being melted is a change in state of matter. The graham cracker crumbs, melted butter, and the sugar being mixed makes the finished product a mixture. The graham cracker mixture being pushed into a form on the bottom of a pan. The same mixture being placed in the freezer is a change in temperature. Mixing the sugar, cream cheese, eggs, vanilla, cornstarch, and sour cream together forms a mixture. Pouring this mixture into the pan changes the shape of the mixture.

7. Ionic (metal) Compound Salt is Sodium Chloride NaCl Na: positive ion Cl: negative ion

8. Covalent (nonmetal) Compound Thiamine Mononitrate in the graham crackers C 12 H 17 N 5 O 4 S Polar Bond (it is polar because of the hydrogen bonds) The intermolecular attractions are dispersion forces & hydrogen bonds

9. Stoichiometry Ex: 25 servings × 908 g cream cheese 16 servings 1967 g cream cheese 385 mL white sugar 4 eggs 11 mL vanilla extract 65 mL corn starch 22179 mL sour cream 26 fl. Oz graham crackers 195 mL butter 128 mL white sugar

10. Is it practical to make the adjusted amount? No because you can make a whole cake and can double the recipe, but it would be very inconvenient to make a cake and a half.

11. Energy 3175 calories in cream cheese 762 calories in sugar 144 calories in eggs 12 calories in vanilla extract 70 calories in cornstarch 498 calories in sour cream 531 calories in graham crackers 613 calories in butter