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Will these boxes fit into my car?
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What do I need to measure? How will I measure it?
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Volume
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Measuring Volume Volume is the amount of space an object takes up.
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Metric Units kL cL mL L The base unit of volume in the metric system is the liter and is represented by L or l. Standard: 1 liter is equal to one cubic decimeter 1 liter (L) = 1000 milliliters (mL) 1 milliliter (mL) = 1 cm3 (or cc) = 1 gram* * When referring to water Liter Image:
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The volume of objects can be measured in three different ways
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Volume of a liquid Use a graduated cylinder Units will be mL or L
Read the bottom of the curve (the meniscus)
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Looking at the meniscus
Move to eye level with the water
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Look carefully! The graduated cylinder on the left is divided into increments of 2 mL, so the volume in it is 12 mL. The graduated cylinder on the right is divided into increments of 1 mL, so the volume in it is 16 mL.
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What is the volume? 6mL
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Volume of a solid (box shaped)
Use a ruler Units are cm3 or m3 Measure the length, width, and height of the object Multiply the numbers together
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What’s the volume? 5cm x 5cm x 5cm = ? 125cm3
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How do I measure a solid that is irregularly shaped?
You can use water displacement
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What will happen if you climb in this bathtub? Why?
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Volume of irregularly shaped objects
Use a graduated cylinder Units are mL or cm3 Find the starting volume: 4.8mL Put in the object and find the new volume: 5.6mL The difference is the volume of the object: 5.6 – 4.8 = 0.8mL
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What is the volume of the hammer?
Starting volume: 65mL Volume with object: 69mL Volume of hammer: 69 – 65 = 4mL or 4 cm3
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The volume of objects can be measured in three different ways
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Volume of larger objects
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Pay attention to the scales for each cylinder.
What is the volume of water in each cylinder? Pay attention to the scales for each cylinder. Images created at A B C
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You Try it Objectives Materials
Safety: follow directions, use materials carefully, clean up any mess, be responsible
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Object 1- domino Table 1 Measure L x W x H cm3 Domino
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Table 2 Fill graduated cylinder Find starting volume
Put in domino and find final volume Calculate the difference mL or cm3 Domino
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With your group Measure the remaining objects in your bin
Record your data Clean up your area and materials Answer the conclusion questions
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Conclusion What is a meniscus? Which object had the largest volume?
Which method found volume the fastest? Which method is more accurate? Why?
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Today Complete your test corrections Update grade sheet
Complete practice volume sheet and bring up to be checked Practice measurements/Review for quiz Length Mass Volume (with ruler and with a graduated cylinder)
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