Volume Lab

• Volume is the measure of ____________________________________.

• It can be measured in __mL___or __cm3__. • These are easy to compare because 1 _______ = 1 ________.

Part A: Liquid Volume Purpose: To practice measuring liquid volume using a graduated cylinder. Hypothesis: If I put drops in a graduated cylinder, then it will take _______ drops to equal 1 mL of water. Materials:

• 10 mL glass graduated cylinder • Beaker about half full of water • Eyedropper

Procedure: 1. Pour 5mL of water into the small graduated cylinder from your beaker of water. (Check the meniscus!!) 2. Add drops (using the eyedropper) to the graduated cylinder until the water level measures 6mL. Record the number of drops in the chart. 3. Continue adding drops until the water level measures 7mL. Record the number of drops in the chart. 4. Repeat this procedure until you have reached 10mL, recording the number of drops to reach each level, individually. 5. Calculate the average number of drops in 1mL. Show your math here: Data Table 1. Number of Drops in 1mL of Water

# of drops from 5 to 6mL

# of drops from 6 to 7mL

# of drops from 7 to 8mL

# of drops from 8 to 9mL

# of drops from 9 to

10mL

Average # of drops in 1mL

Glue this as a side flippy into your notebook on page 35 so it turns like pages in a book.

Part B: Irregular Volume Purpose: To practice finding the volume of an irregularly-shaped object using _volume by________________________________. Hypothesis: If I put one marble in a graduated cylinder, then the volume will rise by _________ mL. Materials:

• 100 mL plastic Graduated cylinder • Beaker of water • 3 marbles

Procedure: 1. Add 50mL of water to the 100mL plastic graduated cylinder. Record 50mL in the first column in the table below. 2. Add 3 marbles to the graduated cylinder (BE CAREFUL!! THE GRADUATED CYLINDER WILL BREAK OR CRACK IF THERE IS NO WATER IN IT!!) Measure the volume. Record this amount in the 2nd column in the table below. 3. Find the difference between column 1 and column 2 by showing your math in column 3. Record this amount in the 3rd column. 4. Record the volume of 3 marbles in column 4. 5. Based on the volume of 3 marbles, determine the volume of a 1 marble. Record your calculation in column 5. Show your math here: Data Table 2. Volume of Marbles by Displacement Starting Volume (mL)

Volume with 3 marbles (mL)

Show your math (box 2 - box1)

Volume of 3 marbles (mL)

Volume of 1 marble (mL)

Part C: Regular Volume Purpose: To practice using a__formula_ to find the volume of an object. Hypothesis: If I measure the volume of our cube, then I think its volume will be ____________ cm3. Materials:

• Metric ruler • 1 cube • science textbook • empty fish tank on the back counter

Procedure: 1. Measure the length, width and height of the cube in centimeters (cm). Record the data in the table below. 2. Calculate the volume of the cube (V = L x W x H). Record the calculation. 3. Measure the length, width and height of a science textbook from the shelf in centimeters (cm). Record the data. 4. Calculate the volume of the science textbook. Record the calculation. 5. Measure the length, width and height of the fishtank on the back counter in centimeters (cm). Record the data. (Only one group at the fish tank at a time, please). 6. Calculate the volume of the fishtank. Record the calculation. Data Table 3. Volume of Regular Objects Object Length (cm) Width (cm) Height (cm) Volume (cm3)

(show your work) Cube

Science textbook

Fish tank

Part D: Conclusion Answer these questions in complete sentences in the space below. 1. How do you measure liquid volume? (make sure to use the word meniscus). 2. How do you measure the volume of an irregular object, like a rock?

3. How do you measure the volume of a regular object, like a cube?

4. Based on your data, what would be the volume of 100 marbles? Show your work. 5. Based on your data, how many milliliters of water would fill the fish tank? How do you know? 6. What is the difference between mass and volume? 7. Describe an object that has a large mass but a small volume. (It is very heavy, but it is a small object). Draw a picture of your object, too. 8. Describe an object that has a small mass but a large volume. (It is very light, however it is a very large item). Draw a picture of your object, too.