Mon Oct 1 and Tues Oct 2 Part of cell theory says that all living things are made up of one or more cells. Scientists had to find ways to test this theory. Which investigation could scientists use to test this part of cell theory? A.heat plant or animal tissue on a hot plate B.test plant or animal tissue with a pH meter C.examine plant or animal tissue with a microscope D.measure the mass of plant or animal tissue with a scale

Wed Oct 3 and Thurs Oct 4 Early scientists wondered how two parents with brown eyes could have a child with blue eyes. Which of these studies would best help scientists develop a theory explaining how eye color is inherited? A.study the history of the family eye color of 100 random people B.study the history of the family eye color of 50 blue-eyed people C.study the history of a family in which all individuals within the past five generations were born with blue eyes D.study the history of four generations of 20 different families in which brown-eyed parents had at least one blue-eyed child

Bellwork Mon Oct 8 and Tues Oct 9 Cindy predicts that plastic foam insulates cold drinks better than metal or ceramic materials do. To test the hypothesis, she fills cups from these materials with equal amounts of cold water. She records the temperature of the water in each cup, every 10 minutes until the water reaches room temperature. Which of these conditions must be the same for this experiment to be valid. a.The thermometer in each cup b.The starting temperature of the water in each cup c. The ending temperature of the water in each cup d. The material that makes up each cup

Bellwork Wed Oct 10 and Thurs Oct 11 Cathy designs an experiment to investigate how well cups made of different materials maintain the temperature of a cold drink. Which step is the most important in order to increase the accuracy and validity of Cathy’s results. a.Use a different beverage in each cup b.Conduct the experiment in a cool room c.Conduct multiple trials and have another scientist repeat the experiment d.Analyze the experimental results and organize experimental data in a table

Bellwork Fri Oct 12 and Wed Oct17 Ana is in charge of studying the air quality throughout her state and its effect on the respiratory health of the citizens. Which hypothesis does she investigate? a.The quality of the air varies throughout the state b.Air quality in her state is worse than it is in other states c.Air quality has a relationship to respiratory problems d.Air quality is worsening due to increasing population and industrialization

October 19 th : Create one level one and one level 2 question for lesson 4

October 22 Why do we use data tables? Why do we use graphs? We use data tables to organize data (to reduce error and allow others to compare results). We use graphs to display data in a way that shows TRENDS!

October 23/24 What information do we show when we use the following (why do we use each): 1. Line graph (scatter plot) 2. Bar graph 3. Circle graph We use line graphs to show how x (ind var) effects y (dep var). We use Bar graphs to compare different categories, and circle graphs to show %.

October 25/26 Label the following : -x axis -y axis - Independent variable - Dependent variable - See text and notes for answer

October 29/30 Explain the difference between constants (controlled variables), and uncontrolled variables. Why are they each important in science experiments? Constants do not change (they are things we purposely keep the same). Uncontrolled variables are things that are not kept constant, and may effect the validity of the data. There should be only one independent variable…everything else (except the DV, which may or may not be affected by the IV) must stay the same, or the data will not be valid. You would not know what the cause of the changes really were.