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Air Investigation 2

Air Investigation 2. Does Air Have Mass?. Try This. Does air have mass?. Find the mass of an empty balloon _______g 2. Fill the balloon with air 3. Find the mass of the air filled balloon ______g 4. Subtract #1 from #3 _________ 5. The mass of the air is ______g.

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Air Investigation 2

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  1. Air Investigation 2 Does Air Have Mass?

  2. Try This Does air have mass? • Find the mass of an empty • balloon _______g • 2. Fill the balloon with air • 3. Find the mass of the air filled • balloon ______g • 4. Subtract #1 from #3 _________ • 5. The mass of the air is ______g Air has MASS

  3. Matter • Matter is the “stuff” that everything is made of. • We call this “stuff” particles. • Particles are atoms & molecules • Atoms and • molecules make • up matter

  4. Mass • Mass is the measure of the amount of matter in an object. • We use a balance to measure mass • Mass is measured in grams and kilograms units

  5. To Measure Mass Of an Object • Get a balance • Place an object on the balance • Add masses on the other side until balanced • This is the objects total mass

  6. Weight • Weight is the pull of gravity on an objects mass • We use a scale to measure weight • Weight is measured in pounds and ounces in the U.S. but kilograms and grams in metrics.

  7. To measure weight Take an object • Remember the amount • of matter in an object is • the mass • Gravity always pulls • down on objects, so • gravity pulls on mass

  8. Get a scale • Place the scale • between the center of • gravity and the object • The scale measures • the amount of gravitational pull as • “weight”

  9. Let’s see if you remember What is the difference between mass and weight? • Mass is the amount of matter in an object • Weight is the pull of gravity on mass

  10. Why isn’t the balance measuring weight too? Balanced = 0

  11. Mass is the amount of matter in an object and will not change with location

  12. Weight is the pull of gravity on mass and can change with location

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