volume. volume:______________________________ _______________________________________ the amount of...
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Volume
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Volume:______________________________
_______________________________________
The amount of space an object takes up.
Graduated cylinders and beakers measure volume.
Volume
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Volume can also be measured using the equation (L x W x H). For example, a cube measuring 3.0 cm would have a volume of 27 cm3.
Volume
3.0 cm
3.0
cm
3.0 cm
Volume = L x W x HVolume = 3 x 3 x 3Volume = 27cm3
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English vs. Metric Units
Which is larger?
A. 1 liter or 1 gallon
B. 1 liter or 1 quart
C. 1 milliliter or 1 fluid ounce
1 gallon = 3.79 liter
It would take approximately 3 ¾ 1-liter bottles to equal a
gallon.
1 fl oz = 29.573 ml1 12-oz can of soda
would equal approximately 355 ml.
1 quart = 0.946 liters
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Metric Units
The base unit of volume in the metric system is the liter and is represented by L or l.
1 liter is equal to one cubic decimeter
Metric Units
1 liter (L) = 1000 milliliters (mL)
1 milliliter (mL) = 1 cm3 (or cc) = 1 gram*
Which is larger?
A. 1 liter or 1500 milliliters
B. 200 milliliters or 1.2 liters
C. 12 cm3 or 1.2 milliliters*
Click the image to watch a short video
about volume.
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Measuring Volume
We will be using graduated cylinders to find the volume of liquids and other objects.
Read the measurement based on the bottom of the meniscus or curve. When using a real cylinder, make sure you are eye-level with the level of the water.
What is the volume of water in the cylinder? _____mL
What causes the meniscus?
A concave meniscus occurs when the molecules of the liquid attract those of the container. The glass attracts the water on the sides.
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Measuring Liquid VolumeWhat is the volume of water in each cylinder? In mL…
Pay attention to the scales for each cylinder.
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Measuring Solid Volume
10 cm
9 cm
8 cm
We can measure the volume of regular object using the formula length x width x height.
_____ X _____ X _____ = _____
We can measure the volume of irregular object using water displacement.
Amount of H2O with object = ______
About of H2O without object = ______
Difference = Volume = ______
9 8 10 720
265 mL
200 mL
65 mL
_______ - _______ = _____265 mL 200 mL 65 mL
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Trial 1: Measuring Volume using LxWxHUsing a RULER measure the length, width, and height (in centimeters) of the block below and find the total volume.
L x W x H = Volume
________ x ________ x ________ = _______cm3
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Trial 2: Combining Volume
Working with graduated cylinders, carry out the following procedures and record your data. Measure 15 mL of blue water into a graduated cylinder then pour it into a beakerMeasure 20 mL of yellow water into a graduated cylinder then pour it into the same beaker What is the color of the water in the beaker? _____________________________________ What is the total volume of the water in the beaker? ______________________________mL
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Trial 3: Displacement Method with Floating Object How do you find the volume of a floating object? We use the displacement method. Follow the following procedure for finding a floating object’s volume. Procedure:Fill graduated cylinder with water to 20mL
Add floating object
Use care to submerge the object – make sure it is fully under water.Record new graduated cylinder volume ________________ (add units)
Take new volume, subtract it from original volumeWhat is the volume of the marble? ________________ (add units)
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Trial 4: Displacement Method with Sinking Object
How do you find the volume of a marble? We use the displacement method. Follow the following procedure for finding a marbles volume.
Procedure:•Fill Graduated Cylinder with water to 20mL
•Add Marble
•Record new Graduated Cylinder Volume ________________ (add units)
•Take new volume, subtract it from original volume•What is the volume of the marble? ________________ (add units)