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Name________________ Can You Catch a Fish on a Moonbeam? Background: Moonbeam Fishing Supply Company is developing a new fishing lure that will attract fish using a glowing part on the lure. They claim that the fish will see the glow and will be attracted to the lure. However, they are wondering how the lure will be affected by different water temperatures. They are hiring you to find out how the temperature of the water will affect the amount of glow. 1. Problem: How does the temperature of the water affect the glow of the glow stick? 2. State Your Hypothesis: 3. Test your hypothesis: a) supplies: 2 baby food jars, 2 glow sticks, ice, water, warm water, 1 shoe box, paper towels, 1 thermometer, pencil, forceps b) procedure: Fill one baby food jar with room temperature water and use thermometer to find its temperature. Place 1 glow stick in the control jar. Place control jar under the correct place in the shoe box. Take the other baby food jar and fill it with ice. Use the thermometer to take its temperature. Place the other glow stick in the variable jar. Place the variable jar under the correct place in the shoe box. Close the shoe box lid and look through the holes at the glow of the glow stick. Record your results in the chart below. Put the ice back and repeat with cold water and with warm water. 4. Analyze the data: a) Temperature of the control water = ______°C b) Type of water Temperature of How does the water glow compare to the control? Ice Cold Water Warm Water 5. Draw a conclusion Is your hypothesis correct or incorrect? Why? 6. Communicate your results a) How does the water temperature affect the amount of glow that the glow stick gave off? b) Should fisherman use this type of fishing lure in the cold waters from mountain streams in Alaska? Why or why not? c) What water temperature range do you think would be the best to use this fishing lure? Why?
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