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Monday Warm Up

Monday Warm Up. October 21. Which physical property is used to identify matter based on solubility? A evaporation B volume C ability to dissolve D mass. A student is trying to dissolve 25 grams of sugar in a beaker containing 300 mL of water. The student proposes the following problem:

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Monday Warm Up

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  1. Monday Warm Up October 21

  2. Which physical property is used to identify matter based on solubility? A evaporation B volume C ability to dissolve D mass

  3. A student is trying to dissolve 25 grams of sugar in a beaker containing 300 mL of water. The student proposes the following problem: “What factor would result in sugar dissolving faster in water?” Which change would most likely cause sugar to dissolve the fastest? A decreasing the temperature of the water B using larger pieces of sugar C stirring the mixture rapidly D using less water

  4. What evidence in the picture proves ice has less density than water? A The water has more buoyancy than the ice cubes. B The ice cubes are floating in the water C The ice cubes are resting at the bottom of the glass D The ice cubes are melting and becoming a liquid

  5. A science class completed a study on how objects move. All of the following would be considered appropriate when testing the effects of the force of motion on an object EXCEPT- A throwing a baseball B two teams playing tug of war C measuring the size of two marbles D paddling backwards in a boat

  6. In science class, students learned that friction is the resistance to motion when two objects rub together. The students decided to design an experiment at home to compare friction on dry and icy surfaces. Which question is most beneficial for this type of investigation? A Is it faster to sled down an icy hill or down a rough gravel driveway? B What is friction? C What makes ice slippery? D What effect does the height of the hill have on the distance an object travels?

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