SPI 0807.Inq.1 (Variables and Controls) Bellwork 8/26/2015 Fill in the Blank with a Vocabulary word from this week. 1. _____________is the variable that is held constant in an experiment. 2. ____________ Variable is the variable being measured or observed in an experiment. 3. ____________Variable is the variable you choose to test or change. 4. ___________ is looking at results, data collected for example, to decide if the question was answered or the problem solved. 5. ___________ is a possible answer to a question or a solution to a problem. 6. ___________is the steps that are taken to solve a problem or answer a question

SPI 0807.Inq.1 (Variables and Controls) Agenda 8/26/2015 Review Bellwork (definitions) Review Study Guide Take and review quiz on Independent Variable Emphasize Today’s Objective Check worksheet Notes on Dependent Variable WRITE THIS IN YOUR AGENDA! Homework: Study for FRI quiz

Answers 1. b 2.c 3.b 4.b 5.b 6.a 7.B 8.a 9.a 10.c Study Guide SPI 0807.Inq.2 (Tools and Procedures Aug 26, 2015 Press the Right Arrow Button to Advance through the Presentation!

Instructions A) Put away your books, study guides, notebooks, & agendas B) Go to work station one and pick up a copy of the quiz C) Write your first and last name on the paper D) Beneath your name, write today's date E) Beneath the date, write the class period F) Go ahead and silently start working  You will have 7 minutes to complete this quiz Quiz SPI 0807.Inq.2 (Tools and Procedures Aug 26, 2015 Press the Right Arrow Button to Advance through the Presentation!

Area Answers 1.20 cm cm cm2 4.8 cm cm2 6.6 cm cm cm cm cm cm cm cm cm cm3 Worksheet SPI 0807.Inq.2 (Tools and Procedures Aug 26, 2015 Press the Right Arrow Button to Advance through the Presentation! Perimeter Answers 1.18 cm 2.36cm 3.26 cm 4.12 cm 5.16 cm 6.10 cm 7.20 cm 8.32 cm 9.38 cm cm cm cm cm 14.22cm cm Volume Answers 1.192cm3 2.48cm cm cm3 5.24cm3 6.18cm cm cm cm cm3

Tennessee SPI Objective: Design a simple experimental procedure with an identified control and appropriate variables. Notes Science Essential Learning Students will examine the steps of the scientific method and key components of experiments to include independent and dependent variables, and controls. Essential Question(s) What are the steps of the scientific method? What are experiments, and how do I design them to include independent/dependent variables, and controls? Instructions 1) First click on "View" from the top-menu bar. 2) Then click on "Slide Show" from the drop-down menu. 3) Then use the right-arrow button on your keyboard to advance through this presentation. SPI 0807.Inq.1 (Variables and Controls)

Notes SPI 0807.Inq.1 (Variables and Controls) Science What Is A Dependent Variable?  Often called the "responding variable" because it is the response to the factor that was previously introduced  These are the results that you observe after you introduced the independent/manipulated variable  In other words, anything that "changes on its own" while the experimenter is observing it will be a… Also called "Responding Variable"

Example: A scientist is conducting an experiment to test how sunlight affects plant growth.  She places one corn plant 1 meter away from a sunlamp.  She places one corn plant 2 meters away from a sunlamp.  She places one corn plant 3 meters away from a sunlamp. Corn plant 01Corn plant 02Corn plant 03 What is a dependent variable in this example? HINT: What is the response to the distance from the sunlamp? The independent variable is the distance from the sunlamp A dependent variable is the plant growth

Example: A student conducts an experiment with ten 8th grade students. He uses 3 similar types of sour candy in a series of four trials. (Sour Patch Kids, Sour Skittles, and Warheads) He gives 1 piece of candy to each student and records their facial expressions to estimate how sour each candy is. What is a dependent variable in this example? HINT: What is the response to the different types of candy? The independent variable is the type of sour candy A dependent variable is their reaction (facial expressions)

Example: A student conducts an experiment to determine which type of glue works best for attaching two pieces of regular writing paper together. She places 2g of glue on each sheet of paper, and then uses a spring scale to measure how much force it takes to pull the sheets apart. Liquid-washable Glue Stick-washable Glue Stick-nonwashable She uses 3 types of Elmer’s glue in a series of experiments. What is a dependent variable in this example? HINT: What is the result from using the different types of glues? The independent variable is the type of glue Dependent variable-how much force to pull apart the paper

Example 05: A student conducts an experiment to determine which ink color in ballpoint pens will last the longest before running out. She uses 3 ink colors in 3 ballpoint pens in a series of experiments. (1) Black ink pen, (2) Blue ink pen, (3) Red ink pen) She copies text from her science book. She copies the same text over and over. She writes at the same speed. The room temperature remains the same. She writes on the same kind of paper each time. What is a dependent variable in this example? HINT: What is a result from using the different color inks? The independent variable is the color of the ink A dependent variable is how long the ink lasts.