DO NOW 9/21/15 The data table shows the concentration of estrogen in picograms per milliliter (pg/mL) in the blood of a woman over the course of 28 days. 06/14 Using the information given in the data table, construct a line graph on the grid following the directions below. 1). Mark an appropriate scale, without any breaks, on the axis labeled “Concentration of Estrogen.” 2). Plot the data for concentration of estrogen on the grid. Surround each point with a small circle and connect the points. 3). The concentration of estrogen at day 8 is closest to (a) 28 pg/mL (c) 150 pg/mL (b) 80 pg/mL (d) 200 pg/mL

DO NOW 9/22/15 A laboratory procedure involving a microscope slide is represented in the diagram below. State one purpose for this procedure. ________________________________________________________________________________________________________________________ Identify one specific substance represented by the liquid in A. State the purpose of the paper towel labeled B. 08/14

DO NOW 9/24/15 Ticks, such as deer ticks and dog ticks, feed on the blood of humans and other animals. Part of the feeding process involves the tick injecting its saliva to help make blood flow. In the process, they sometimes spread disease organisms to their host. Sometimes ticks get on clothing, and can remain there for a few days before actually biting their host. A scientist found that ticks might be able to survive even when exposed to hot water and detergent in a washing machine. Students designed the experiment below to test how well ticks survive a hot-water washing machine cycle with detergent. Note that some details of the design are incorrect. 06/14

Identify one error with the hypothesis. _______________________________________________________________________________________________________________________________________________________________________________________ Explain why the students’ proposed data to be collected would not likely test what the students intended. Identify one error in the students’ design in the shaded area of the table and explain how the students should change the experiment to correct the error. Error: ________________________________________________________ _____________________________________________________________ Correction: ___________________________________________________ __________________________________________________________________________________________________________________________

DO NOW 9/25/15 A group of students obtained the following data while trying to determine the effect of exercise on pulse rate. Which statement is an example of an observation the students could have made? (1) Pulse rates in beats per minute decrease for all people after exercise. (2) Student A most likely exercises regularly. (3) The pulse rate of student C was dangerously low. (4) The pulse rate of student F increased by 30 beats per minute. 8/15

DO NOW 9/28/15 Some poinsettia plants have green leaves that turn red. A garden club decided to study the color change of poinsettia plants. Knowing that poinsettias change color during the short daylight periods of winter, they decided to investigate the effect of different daylight lengths on color change. Design a controlled experiment using three experimental groups that could be used to determine if the number of hours of daylight has an effect on the color change of poinsettias. In your experimental design, be sure to: • state one hypothesis the experiment would test • state one way the three experimental groups would differ • identify two factors that must be kept the same in all three groups • identify the dependent variable in the experiment • describe experimental results that would support your hypothesis 08/14