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Kool Kups Lab

Kool Kups Lab. Observing the States of Matter: Solid, Liquid, and Gas. Inquiry Lesson: Reference pages 87-90 in the “Chemistry Matters” AIMS book. Key Question and Objectives. Question: How can you observe a change in state by observing a glass of flavored fruit drink? Objectives:

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Kool Kups Lab

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  1. KoolKups Lab Observing the States of Matter: Solid, Liquid, and Gas Inquiry Lesson: Reference pages 87-90 in the “Chemistry Matters” AIMS book

  2. Key Question and Objectives Question: How can you observe a change in state by observing a glass of flavored fruit drink? Objectives: 1. Observe a change in state in water. 2. Identify the three states of matter. 3. Be able to explain, using evidence from the investigation, that the water came from the air not the glass.

  3. Materials Your teacher will put you with a partner. You will need your lab sheet as well as the following materials: • 2 plastic cups with a rubber band attaching a thermometer to the outside of each cup. • One cup is filled with flavored drink, and the other has flavored drink plus ice. • White paper towel or napkin

  4. Procedure • On the back of your packet, draw a Venn diagram to compare and contrast the cup with the ice versus the cup with no ice. • List the independent variable, dependent variable and three constant variables. • Measure and record the temperature (Celsius) at the start for cups one and two on the data table. • Record the air temperature of cups one and two every 3 minutes on your data table.

  5. 5. After 9 minutes, wipe the outside of cups 1 and 2 with a white paper towel. What do you observe? Record these observations. Is the wet spot the same color as the flavored drink? How does this help us see that the water did not come from the cup? 6. What variable do you think caused the water to collect on the outside of the cup? Record your thoughts. 7. If the water did not come from the cup where do you think it came from? 8. After minute 12, place your hand next to each cup. Record the temperature difference that you observe.

  6. 9. The ice inside the cup has cooled the air around the cup. The water on the outside of the cup is the air condensed, meaning that it turned from water vapor to air. 10. Record the three states of matter: solid, liquid and gas, on the diagram on the front of your lab sheet. 11. Answer the questions on the back of page one in complete sentences. 12. Draw a double line graph to show the temperature changes for cups one and two.

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