Science

Name: __________________________________

Purpose

To investigate the relationship between the height of water in a container and how fast if flows out.

Material

1. Prepared Water bottle with hole
2. Graduated cylinder
3. Ruler
4. Stopwatch or Wall clock with second hand

Instructions

Repeat the following steps with the bottle starting with different water levels in the bottle. For example, nearly full, half full, and nearly empty. Collect additional data for other water levels as time permits. The more data the better.

Hook

15 min.
Talk about the history of water clocks. http://en.wikipedia.org/wiki/Water_clock
Relate this to how the Greeks used the water clock to limit debate in public life.
Discuss how the Greeks divided the day into 12 hours, so they changed length as the seasons changed.
Show the Tower of the Winds in the Agora. http://en.wikipedia.org/wiki/Tower_of_the_Winds

Lesson Flow

10 min - Divide the children into groups. Ensure each group has a heterogenous mix of students. Introduce the experiment. List required information to be gathered for the lab report.

Rationale

Fluids are an important component of man systems. Fluids have different properties that determine how they can be used. Fluids are essential to life.

Expectations

Overall Expectations

• From the curriculum docs

Specific Expectations

Settings

Students

What the students are expected to know before they can handle this unit. Include a diagnostic test, or point to a unit that you will teach before hand. Ideally, you can get this from the previous grade's curriculum.

Teacher