1. Bell Work: 8/25/15 Students want to determine which type of plant will best survive in a hot, dry environment. They place four different types of plants in identical pots, and put all of the plants by the same large window. They give each plant the same amount of water every day. Which of these is the independent variable for the students’ experiment? A) amount of water B) health of plant C) type of plant D) amount of sunlight You must write the question, answer, and JUSTIFY!

2. Bell Work: 8/25/15 Students want to determine which type of plant will best survive in a hot, dry environment. They place four different types of plants in identical pots, and put all of the plants by the same large window. They give each plant the same amount of water every day. Which of these is the independent variable for the students’ experiment? A) amount of water B) health of plant C) type of plant D) amount of sunlight You must write the question, answer, and JUSTIFY!

3. Standards and Essential Questions: SPI 0807.Inq1 (Variables and Controls) Design a simple experimental procedure with an identified control and appropriate variables. SPI0807.Inq.3 Interpret and translate data into a table, graph, or diagram. Essential Questions: Can I use procedures to identify controls and variables? Can I translate data into tables, graphs, or diagrams?

4. Check The Dropped Egg Investigation  Get out an ink pen. You will grade your own paper.  This will be a CW grade.

5. SPI 0807.Inq1 (Variables and Controls) Independent Variables In an experiment… …you should only test for ONE key thing at a time When you repeat the experiment… …only change this ONE key thing This ONE thing is called… AN Independent Variable Also known as the manipulated variable Copy in notes!

6. SPI 0807.Inq1 (Variables and Controls) What is an independent variable? The one thing YOU change each time you duplicate an experiment Here is our simple memory trick to help you with this. Independent variable begins with the letter “I” So, remember the letter “I” Imagine yourself doing the experiment and ask yourself “What ONE thing will I change when repeating the experiment?” That one thing will be The Independent Variable Also known as the manipulated variable Copy in notes!

7. SPI 0807.Inq1 (Variables and Controls) Dependent Variables What is a dependent variable? Other factors that change because of the independent variable. These are the things that YOU DO NOT CHANGE…they change on their own while you are making observations. In other words, “anything that changes on its own” while the experimenter is observing it will be a …. DEPENDENT VARAIABLE Also called the “REPSONDING VARAIBLE” Copy in notes!

8. SPI 0807.Inq1 (Variables and Controls) Let's take a moment to watch and discuss a video- song about this topic. Link: Variable Song by Mr. EdmondsVariable Song by Mr. Edmonds

9. SPI 0807.Inq1 (Variables and Controls) Elbow Partner!

10. SPI 0807.Inq1 (Variables and Controls) The independent variable is the TYPE OF SOFT DRINK

11. SPI 0807.Inq1 (Variables and Controls) Elbow Partner!

12. SPI 0807.Inq1 (Variables and Controls) The independent variable is distance from sunlamp which is connected with the amount of sunlight.

13. SPI 0807.Inq1 (Variables and Controls) Elbow Partner!

14. SPI 0807.Inq1 (Variables and Controls) The independent variable is the TYPE OF SOUR CANDY.

15. SPI 0807.Inq1 (Variables and Controls)

16. The independent variable is the TYPE OF GLUE.

17. SPI 0807.Inq1 (Variables and Controls)

18. The independent variable is the COLOR OF INK.

19. Independent Work: Identifying Variables Example: #ScenarioProblemIndependentDependentControls 1Apple trees that receive most H2O will produce larger apples Does amount of H20 impact size of apples Amount of H2O Size applesAmount of sun and soil

20. Exit Ticket