Science/Strand V/Content Standard 2/Elementary/Benchmark 1
Instructional Example

Benchmark Question: Where is water found on Earth and what are its characteristics?

Focus Question: What are the different states of water on the EarthÕs surface?

In the teacher-guided demonstration, the teacher will place soil or sand in a plastic container with a cover (clear rectangular works best). Using a scale, students will weigh the tightly sealed container and record their findings. The teacher will add ice to the container, seal it, and re-weigh the container. Students will record this data. The container should be moved to an observable place and slightly elevated at one end.

The teacher should pose the focus question and allow students to record a prediction. Using a table to record date and time, students should draw or describe their observations after the container is sealed for five days. The students will make several observations of the sealed container and record and draw (or describe) their observations. Students will participate in discussions around the focus question.

On the last day of the demonstration, the teacher will weigh the container. The students will compose written draw conclusions based on their observations and the class discussions in regard to the focus question. They will also include a comparison between their predictions and results of the demonstration.

Note: If the container is tightly sealed there should be little change in the weight of the container.

Constructing: (SCI.I.1.E.1) (SCI.I.1.E.2), (SCI.I.1.E.4), (SCI.I.1.E.6)

Reflecting: (SCI.II.1.E.4)