Students write a hypothesis about the effect of viscosity on the amount of time it takes a marble to fall through a liquid and design a controlled experiment to test their hypothesis. Students perform their experiment, record data, and state a conclusion. Students will complete the Process Skills blackline master on Lab Manual pages 111-112 as they do the activity. Students will observe a hand bell by using the senses of sight, smell, and hearing, but without touching or tasting. Students will records their observations.
Students then ring the bell and record their observations.
Finally, students compare the tone and dimensions of their partner's hand bell with that of their own. Students will complete the Process Skills blackline master on Lab Manual pages 89-90 as they do the activity. Students observe a cup of water and a cup of olive oil and record their observation in a data table. Students try to guess which liquid their partner is describing from the description their partner wrote. Students conclude the activity by comparing their data table with that of their partner.