Will these boxes fit into my car?

What do I need to measure? How will I measure it?

Volume

Measuring Volume Volume is the amount of space an object takes up.

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: http://www.dmturner.org/Teacher/Pictures/liter.gif

The volume of objects can be measured in three different ways

Volume of a liquid Use a graduated cylinder Units will be mL or L Read the bottom of the curve (the meniscus)

Looking at the meniscus Move to eye level with the water

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.

What is the volume? 6mL

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

What’s the volume? 5cm x 5cm x 5cm = ? 125cm3

How do I measure a solid that is irregularly shaped? You can use water displacement

What will happen if you climb in this bathtub? Why?

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

What is the volume of the hammer? Starting volume: 65mL Volume with object: 69mL Volume of hammer: 69 – 65 = 4mL or 4 cm3

The volume of objects can be measured in three different ways

http://www.youtube.com/watch?v=s5u5cmA9Dp0 http://www.youtube.com/watch?v=e0geXKxeTn4 Volume of larger objects

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 http://www.standards.dfes.gov.uk/primaryframework/downloads/SWF/measuring_cylinder.swf A B C

You Try it Objectives Materials Safety: follow directions, use materials carefully, clean up any mess, be responsible

Object 1- domino Table 1 Measure L x W x H cm3 Domino

Table 2 Fill graduated cylinder Find starting volume Put in domino and find final volume Calculate the difference mL or cm3 Domino

With your group Measure the remaining objects in your bin Record your data Clean up your area and materials Answer the conclusion questions

Conclusion What is a meniscus? Which object had the largest volume? Which method found volume the fastest? Which method is more accurate? Why?

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)