These activities should be conducted in cooperative groups of 2-3 students. This will allow the students to have personal involvement in the activities and help them construct their own understanding of what is happening. This will require materials and set-up for each group. If small group works are not possible the activities might also be set up as centers. Groups of students could then rotate through each station. This approach would require fewer materials and less set up. A final option would be to conduct the activities as a teacher directed demonstration with the whole class observing. This would require fewer materials and less set up, however, it is recommended only if the two options discussed above are not possible.
Students will begin the activities after the introduction to the lesson which asks them to think about if the water they drink is the same water dinosaurs drank. Each activity should begin with some opening questions, which should be discussed with the whole class, and conclude with a set of questions that students will answer in writing.