Grade 5 Essential Lab # 2- PHYSICAL AND CHEMICAL CHANGES: MARTIAN FUEL
Student Procedures and Materials
Experiments A-1 and A-2: Antacid Tablet
Materials Per Group:
Graduated cylinder (50 mL of water)
Antacid tablet
Clear plastic cup
Paper towels
Procedures:
Experiment A-1 Antacid tablet
1. Observe, describe, and measure the mass of the antacid tablet.
2. Break the tablet into small pieces.
3. Is this a physical or chemical change?
Experiment A-2 Antacid tablet broken pieces
1. Using a graduated cylinder, measure 50 mL of water and pour it into a cup.
2. Drop the tablet pieces into the cup.
3. Observe what happens and record. Write whether it is a physical or chemical change.
4. When you are finished, empty the cup into the waste bucket at the front of the ro
Experiment B-1: Ice
Materials Per Group: Ice cube (one) Clear plastic cup
Procedures:
1. In the empty clean cup, place one (1) ice cube.
2. Observe and record how the ice looks and feels.
3. Set the cup and ice cube aside until you are finished with B-2.
4. Describe and record the change in the ice. Is this a physical or chemical change?
Experiment B-2: Play-doh
Materials Per Group: Play-doh
Procedures:
1. Remove the Play-doh from its container and describe how it looks, feels, and smells.
2. Break the Play-doh up into many small pieces.
3. Observe and record the change.
4. On the data sheet, write whether this is a physical or chemical change.
Go back to Experiment B-1: Ice1. Look at the cup that held the ice cube from experiment B-1.
2. Observe and record the change.
3. Is this a physical or chemical change?
Materials Per Group:
Safety goggles Graduated cylinder Lemon juice (40 mL) Baking soda (1 teaspoon)
Paper towels Clear plastic cup Measuring spoon (teaspoon or 5 mL)
Procedures:
Experiment C: Baking soda and lemon juice
1. Use a graduated cylinder to measure 40 mL of lemon juice and add it to a small cup.
2. Add one (1) teaspoon of baking soda to the cup.
3. Observe and record the change.
4. On the data sheet, write whether this is a physical or chemical change.
5. Empty the contents of the cup into the waste bucket and rinse it. Save the cup for experiment F.
Experiment D: Baking soda and vinegar
Materials Per Group:
Safety goggles Graduated cylinders Clear plastic cups Baking soda (1 teaspoon)
Vinegar (10 mL) Measuring spoon (teaspoon) Paper towels
Procedures:
1. Start with a new cup and add one (1) teaspoon of baking soda to it.
2. Using the graduated cylinder, measure 10 mL of vinegar and add it to the same cup.
3. Observe and record the change.
4. On the data sheet, write whether this is a physical or chemical change.
5. Empty the contents of the cup into the waste bucket and rinse the cup.
Experiment E: Milk and vinegar
Materials Per Group:
Safety goggles Graduated cylinders Milk (25 mL)
Vinegar (30 mL) Clear plastic cup Paper towels
Procedures:
1. Use the graduated cylinder to measure 25 mL of milk and add it to the cup.
2. Use the graduated cylinder to measure 30 mL of vinegar and add it to the same cup.
3. Observe and record the change.
4. On the data sheet, write whether this is a physical or chemical change.
Experiment F: Kool-Aid and water
Materials Per Group:
Kool-Aid powder (1 teaspoon) Graduated cylinder Water (60 mL) Clear clean plastic cup
Plastic spoon Paper towels Measuring spoon (teaspoon or 5 mL)
Procedures:
1. Add one (1) teaspoon of Kool-Aid powder to a clear clean cup.
2. Using the graduated cylinder, add 60 mL of water and add it to the same cup.
3. Use a spoon to gently stir the mixture.
4. Observe and record the change.
5. On the data sheet, write whether this is a physical or chemical change.
Lab RolesMaterials Manager / Safety Direction / Technical Manager / Project Manager
Name: / Name: / Name: / Name:
Science Department, Office of Academics and Transformation