Water Property
Stations
Universal Solvent Lab
• Write the title “Universal Solvent Lab” at
the top of the page.
• Write the following on the page:
– Purpose: If eight different materials are stirred
into water, which of them will dissolve?
– Hypothesis: (write in a complete sentence the
answer to the above question)
• Take one of the data tables and glue into
your notebook
Universal Solvent Lab
• Materials:
– Kool Aid mix
– Oil
– Honey
– Bullion Cube
– Vinegar
– Soap Flakes
– Sand
– Flour
– 250ml beaker
– Water
– Stirring Rods
– Data Table
– Science Notebook
Universal Solvent Lab
Substance
Kool Aid
Oil
Honey
Bullion Cube
Vinegar
Soap Flakes
Sand
Flour
Prediction: Will It
Dissolve? (Yes or
No)
Did It Dissolve?
(Yes or No)
Polar or Nonpolar
?
Universal Solvent Lab
• Procedures:
1. Take the 250ml beaker and pour 100ml of water in it
2. Fill out the “prediction” column in the data table for the first
substance “Kool Aid”
3. Sprinkle (or pour) a small, quarter-size amount of the material
into the beaker of water
4. Stir for 1 -2 minutes.
5. Write down the results on the data table in the “Did It Dissolve?”
column
6. Pour the solution into the “Waste” container
7. Repeat steps 1 – 6 for the remaining substances
Universal Solvent Lab
• Lab Questions: (Write down the question and answer in complete
sentences.)
1. Is water polar or nonpolar?
2. What is a solvent?
3. What is a solute?
4. What is a solution?
5. Did all the substances dissolve in the water? Why or Why not?
6. Which substances did not dissolve in water? Explain why they
did not dissolve.
7. In this lab, what is the solvent?
8. Explain why water is considered the universal solvent. Be
specific.
9. Which substances are considered solutes?
Cohesion/Surface Tension Lab
• Write the title “Cohesion/Surface Tension
Lab” at the top of the page.
• Write the following on the page:
– Purpose: If using three different types of
coins, which would hold the most droplets of
water?
– Hypothesis: (write in a complete sentence the
answer to the above question)
• Take one of the data tables and glue into
your notebook
Cohesion/Surface Tension Lab
• Materials:
– Penny
– Nickel
– Dime
– Paper towel
– Dropper
– Water
– Liquid detergent
– Data Table
– Science Notebook
Cohesion/Surface Tension Lab
• Procedure: (water solution)
1. Place a coin on the tray heads up.
2. Fill the dropper with water
3. Slowly begin to place drops of water on the coin one at a time
4. Count the drops, until the water drop collapses, and spills over
the side of the coin.
5. Record your number of drops on your data table in the correct
column.
6. Use the paper towel to dry the coin.
7. Place the coin in the tray tails up.
8. Repeat steps 2 – 7 for each of the coins.
Cohesion/Surface Tension Lab
• Procedure: (liquid detergent)
1. Place a coin on the tray heads up.
2. Use your finger and spread one drop of detergent on the
surface of the dry coin.
3. Fill the dropper with water
4. Slowly begin to place drops of water on the coin one at a time
5. Count the drops, until the water drop collapses, and spills over
the side of the coin.
6. Record your number of drops on your data table in the correct
column.
7. Use the paper towel to dry the coin.
8. Place the coin in the tray tails up.
9. Repeat steps 2 – 7 for each of the coins.
Cohesion/Surface Tension Lab
Substance
Penny
Heads
Water
Detergent
Tails
Nickel
Heads
Dime
Tails
Heads
Tails
Cohesion/Surface Tension Lab
• Lab Questions: (Write down the question and answer in complete
sentences.)
1. Did the number of drops change with the size of the coin?
Explain.
2. Did the number of drops change with the side (heads vs. tails)
of the coin? Explain.
3. Did the detergent have any effect on the outcome (number of
drops a coin could hold)? Take one coin and explain the
similarity or differences in data due to the detergent)
4. Explain how detergents act as cleaning agents as it relates to
cohesion and adhesion.
High Heat of Vaporization Lab
• Write the title “High Heat of Vaporization”
at the top of the page.
• Write the following on the page:
– Purpose: If two substances are swiped on the
table top, which of the two will evaporate first?
– Hypothesis: (write in a complete sentence the
answer to the above question)
High Heat of Vaporization Lab
• Materials:
– Ethanol
– Water
– Cotton Swap
– Stop watch
High Heat of Vaporization Lab
• Procedure:
1. Simultaneously stick one cotton swab into a container of water
while doing the same with a second cotton swab in a container
of ethanol.
2. Gently draw thin lines of liquid between the tape lines with
each swab on your table.
3. Record in your lab book the amount of time it takes for each to
evaporate.
High Heat of Vaporization Lab
• Lab Questions: (Write down the question and answer in complete
sentences.)
1. Which substance had the higher heat of vaporization?
2. Based on your results explain why water is a much more
effective coolant than alcohol for the body.
Specific Heat Lab
• Write the title “Specific Heat Lab” at the
top of the page.
• Write the following on the page:
– Purpose:?
– Hypothesis: (write in a complete sentence the
answer to the above question)
Specific Heat Lab
• Materials:
– Thermoaters
– Sand
– Water
– Small containers
– Data table
Specific Heat Lab
•
1.
2.
3.
4.
5.
6.
7.
8.
Procedure:
Place a thermometer in the water and sand.
Record the temperature of each
Place the lid back on the container
Shake each container for 5 minutes.
Record the temperature.
Place the lids back on the containers
Shake containers again for another 5 minutes.
Record the temperature of each.
Specific Heat Lab
• Lab Questions: (Write down the question and answer in complete
sentences.)
1. Did the temperature change for either water or sand?
2. If the temperature changed what would have caused this to happen?
3. If the temperature did not change why not?
Specific Heat Lab
Substance
Water
Sand
0 minutes
5 minutes
10 minutes
Capillary Action Lab
• Write the title “Capillary Action Lab” at the
top of the page.
• Write the following on the page:
– Purpose: If you use two different types of
towels to wipe water, which would do a better
job?
– Hypothesis: (write in a complete sentence the
answer to the above question)
Capillary Action Lab
• Materials:
– Two types of
paper towels
– Food coloring
– Bowl of water
– Scissors
– Ruler
Capillary Action Lab
• Procedure:
1. Add two or three drops of food coloring to water
2. Cut paper towels into 2 inch wide strips
3. Place a mark on each type of paper towel 1 inch from the edge
4. Carefully dip each paper towel straight down into the bowl of
water just to the 1 inch mark
5. Slowly lift the towel straight up out of the water and watch the
water “climb” onto the paper towel.
6. Measure how far the water rises after 30 seconds.
Capillary Action Lab
• Lab Questions: (Write down the question and answer in complete
sentences.)
1. Which type of paper towel did the water rise higher on? Why?
2. What would happen if you put the paper towel into the water up to 2
inches? Do you think the water would rise more, less or the same
amount?
3. World the same thing happen with another liquid? Soda? Milk?
4. What other times might capillary action be used?
Water Polarity Lab
• Write the title “Water Polarity Lab” at the
top of the page.
• Go to my Moodle page and click on
“Polarity Website”.
Water Polarity Lab
• Procedure:
1. Watch the video
2. Answer the questions for the video in your science notebook.
3. Click on “Dig Deeper” on the right
4. Click on “this link” that goes to the virtual lab – it is the last one
listed.
5. Click on “What are some properties of water?”
6. Read the information on the left.
7. Follow the directions for doing the virtual lab
8. Write down and answer the lab questions.
Water Polarity Lab
•
Procedure:
1.
Go to the following lab:
http://www.glencoe.com/sites/common_assets/science/virtual_labs/CT10/CT10.html
2.
Drag the oxygen and hydrogen atoms to the Work Area. Arrange them to form a water
molecule. Click Check. If the molecule is correct, you will see covalent bonds appear
between the oxygen atom and each hydrogen atom. Notice the positive and negative
charges of the molecule.
3.
Drag another water molecule to the one you just made. Position it so it will form a hydrogen
with the first water molecule. Click rotate if you need to turn the molecule.
4.
Click check to see if the water molecules form a hydrogen bond.
5.
Repeat steps 3 and 4 until you have placed six water molecules.
6.
Click the Reference Tool to read about some properties of water. Drag each label to the
appropriate place in the arrangement of water molecules. Then click Check.
7.
To see the arrangement of water molecules at different temperatures, click one of the
Temperature buttons: -20oC, 30oC, or 110oC.
8.
To see the molecules the molecules in motion, click Motion. To see the motion of the
molecules at different temperatures, repeat step 7 and click Motion again.
9.
Complete the journal questions.
Click here to see the journal questions. You will answer them in your
notebook.
Water Polarity Lab
• Lab Questions: (Write down the question and answer in complete
sentences.)
1. How are adhesion and cohesion similar? How are they different?
2. What does this mean? How does this property make hydrogen
bonds between water molecules possible?
3. Why is the formation of hydrogen bonds between water molecules
categorized as cohesion?
4. Describe surface tension in a group of bonded water molecules.
5. Describe the arrangement of water molecules in solid, liquid, and
gas form. How does the movement of the molecules differ in each
form? Describe the bonds when the molecules are in the motion.
6. The density of a substance refers to how close together the
molecules in that substance are packed. Compare the density of
water in its three phases.
Adhesion Lab
• Write the title “Adhesion Lab” at the top of
the page.
• Write the following on the page:
– Purpose: If four different materials are stirred
into water, which of them will stick to a cube?
– Hypothesis: (write in a complete sentence the
answer to the above question)
• Take one of the data tables and glue into
your notebook
Adhesion Lab
• Materials:
– Salt
– Sugar
– Cornstarch
– Flour
– Water
– Small cubes
– 3x5 index cards
– Trays
– Stop watches
– Cups
– Popsicle sticks
– Dropper
– Small plastic cups
w/lids
Adhesion Lab
• Procedures:
1. Use the dropper to add a little water to the substance. You are
looking to form a thick, pasty substance.
2. Use the labeled wooden stick to apply a small amount of
“paste” to one of the labeled cubes.
3. Once you have applied the paste press it onto the index card.
4. Repeat steps 2 – 3 for each substance
5. One person will then turn the index card over while the other
person starts the stop watch.
6. Record the length of time it takes for each cube to fall from the
index card.
Adhesion Lab
• Lab Questions: (Write down the question and answer in complete
sentences.)
1.
Density Lab
• Write the title “Density Lab” at the top of
the page.
• Go Discovery Education. You will do the
assignment labeled “Density Lab”.
• Take one of the worksheets and turn into
the box when completed.