Begin this session by setting some ground rules for science discourse. Explain to students that as we work on this unit, and science in general throughout the year, they will be asked to share their thinking about science concepts.
Teacher will administer worksheet probes (formative assessments) of students’ prior knowledge about “making electricity” and “things that run on electricity.”
The teacher will show an example of a solar powered device using a solar powered calculator.
Students make a hypothesis about how a set of materials should be connected in order to make a motor spin. Through guided trial and error students are led to the idea of a circuit as the proper way to connect the materials in order to make the fan turn....
Students use a solar module and water pump to test how quickly one cup of water can be pumped.
Students use a solar module and other materials in conjunction with a water pump to test how quickly one cup of water can be pumped.
Students use all their prior knowledge to design and construct a water pump that can pump 1 cup of water the fastest.