Displaying top 8 worksheets found for - Phase Change. 2. Some of the worksheets for this concept are Phase change work name date period the graph was, Phase change work, Phase changes work 3 l3, Physical and chemical changes work, Chemistry phase changes heat and matter, Prochaska diclementes six stages of change, Ice cream lab application questions, Name per work heating curve of … Observing Phase Changes 200 PS-3852 For each student or group: Ice cubes (at least 5)Data collection system Temperature sensor Hot plate Erlenmeyer flask, 250-mL Measuring spoons Graduated cylinder, 50 -or 100 mL One-hole stopper Balance Table salt ~ 2 g Distilled water, 200 mL Towel Concepts Students Should Already Know The milk, sugar, and vanilla go in the small bag. Then put the small bag in the large bag. Think like an ice cream churn. 2. - if there was no sugar added, would the ice cream frozen faster? - what happened to the heat energy that left the milk? Do Now: Students will answer pre-lab questions utilizing prior knowledge. to present findings and observations in a clear, logical way Materials Measuring cups and spoons 8 ounces of cream a bottle of chocolate syrup and vial of vanilla extract 4 tsp. 3. why? Making the Ice Cream. - why did the outside of the bag get wet (no leaks)? Lighting the match is a chemical change and burning the candles is a physical change. The Five-Minute Ice Cream experiment introduces students to the science behind making ice cream and how substances can change from liquid to solid. Zip it good. Cover with salt and ice and zip it up. 4. 1. please and thank you. Describe what happened to the heat from the change in the milk. The amount of energy that is absorbed or emitted during a phase change obviously depends on the mass of the material undergoing the change. Lab 8: Distinguishing Between Endothermic and Exothermic Reactions. Put on some Christmas tunes, and turn the shaking into a dance party. What were the temperatures of the pure ice and the ice with salt mixture? 5. Why was salt added to the ice? 16. Shake continuously for 10 minutes. C) Roger is correct. Zip it. I did an ice cream lab, and ihave a few questions that im not sure how to answer.. - what is the state of matter of ice cream ? CONCLUSION The objectives of this experiment are to investigate the effects of temperature changes on physical changes, compute the material and energy balance for producing ice-cream, elaborate the effects of heat transfer on phase changes and describe the crystallisation process during ice-cream production. Is the change in the milk exothermic or endothermic? The melting wax is a physical change and the burning candle wick is a chemical change. 6. B) Roger is correct. This teacher sheet will provide some background information on the experiment along with the answers to the pre- and post-lab questions the students will receive. In a phase change, heat energy is being absorbed or emitted without changing the temperature of the material. Putt Putt Lab can be used to extend the learning of heat transfer and energy transfer. It has to be in constant motion. Putt Putt Boat. ice_cream_phase_changes.pdf: File Size: 172 kb: File Type: pdf: Download File. This website provides full instructions. It takes more energy to melt a bag of ice than it takes to melt a single ice cube. What phase change occurred in the milk? D) Roger is incorrect. CONCLUSION QUESTIONS Submit answers at the end of class. Only a chemical change is taking place as evidenced by the light and heat of the burning candles. Is the freezing point of ice cream lower or higher than the freezing point of water? - in order to chnage the phase of milk, what needs to be removed? Objectives: PS 15: Explain the effect of heat on particle motion through a description of what happens to particles during a change in phase. Ice Cream Lab. Background Information. Students create a steam engine that powers a boat. Ice Cream Lab can be used to observe and discuss latent heat. of sugar bags of ice 26 ounces of Kosher salt 4 quart and gallon size baggies gloves 1) You will need Apply these concepts to make ice cream! 1. What does adding salt to ice do? Reading: Making Ice cream is simply a tasty way to observe scientific principles. Where does the heat energy go if not into increasing or decreasing temperature? Ice Cream Lab Period Is freezing an exothermic or endothermic reaction? Explain why temperature does not change during a phase change. 3.