Solids & Liquids
Investigation 4
Part 2
Liquids and Water
Students add water to bottles of familiar liquids. They observe changes that occur immediately, then tip the bottles gently, and finally shake them vigorously. The results of the mixing are observed and recorded after a day of settling. (from the FOSS teacher guide, 2002 edition)
Students will add water to liquids with different viscosity to observe differences.
3. Lesson set up and Management
- PC01 1.1.1 Use properties to sort natural and manufactured materials and objects, for example, size, weight, shape, color, texture, and hardness.
- PC02 1.1.4 Observe and examine physical properties of earth materials such as rocks and soil, water (as liquid, solid, and vapor) and the gases of the atmosphere.
- SI01 1.2.5 Know that matter can undergo changes of state such as evaporation, condensation, or freezing and thawing.
- IP01 2.1.1 Ask questions about objects, organisms, and events in the environment.
- IP02 2.1.2 Plan and conduct simple investigations using appropriate tools, measures, and safety rules.
- IP03 2.1.3 Use data to construct reasonable explanation.
- IP05 2.1.5 Record and report observations, explanations, and conclusions using oral and written expression.
- IP07 2.2.2 Design and test a solution to a problem.
- Some liquids mix with water.
- Some liquids form a layer above or below water.
3. Lesson set up and Management
* This investigation takes three sessions over a week-long period. Plan ahead on timing.*
Materials:
- Three bottles of the five different liquids, plus one bottle of colored water.
- Copy Student Sheet #29, Liquid With Water.
Student Management:
Pair students with a responsible partner. Have a place ready to store the bottles overnight. Reserve several bottles for use with oil. Clean the bottles with the bottle brush and store in an "Oil Only" bag.
The "Making Liquid Layers" extension on page 30 is a good way to facilitate learning the concept that some liquids have a greater density than others and thus will make layers. The "Make an Ocean In a Bottle" extension on page 30 is also good.
WRAP-UP/CLOSING
- Make new Word Bank entries.
- Make entries to the "What We Learned" Chart and update the "Questions I Have" Chart.
- Read the science story Mix It Up.
- Read Bartholomew and the Oobleck. Parent or adult help will be helpful if you decide to extend with an Oobleck investigation.
ASSESSMENT: Liquid With Water student sheets
Writing Support:
This might be a good time to teach expository writing by having students write the steps in the process to make Ooblek. Teaching ordinal position words (first, second, then, last) would go along with this.
Reading Support:
Suggested Books:
- Mix It Up!
- Bartholomew and the Oobleck by Dr. Suess